As of June 4, Microsoft will disable the master password feature in Edge, replacing it with device-based authentication such as Windows Hello, which includes PINs, fingerprint scans, and facial recognition.
Tag: Microsoft
AI, Exploits, Global Security News
Microsoft responds to security challenges facing code, AI agents, and models
Microsoft has introduced a series of security tools and capabilities focused on AI-driven vulnerability discovery, AI agents, and AI models. The updates include a multi-agent vulnerability discovery system, new controls for managing and securing AI agents, data protection capabilities, and tools designed to identify potentially vulnerable or compromised AI models before deployment. MDASH targets exploitable…
AI, Cybersecurity, Global Security News
One-Click GitHub Dev Attack Lets Attackers Steal Full GitHub OAuth Tokens
Cybersecurity researchers have disclosed a one-click attack via Microsoft Visual Studio Code (VS Code) that makes it possible to steal a user’s GitHub token. “Just by clicking a link, it’s possible for an attacker to steal a GitHub token that can read and write to your repos, including private ones,” security researcher Ammar Askar said.…
Apps, Global Security News
Microsoft’s Coreutils project brings Linux commands to Windows
Microsoft announced today at its Build 2026 developer conference the release of Coreutils for Windows, bringing many commonly used Linux command-line utilities to Windows as native applications. […]
AI, Global Security News, Russia
FBI-Flagged Phishing Kit Kali365 Expands Its Reach
Once targeting just Microsoft 365, the phishing-as-a-service platform now aims at AWS, Okta, and Russian platforms, while relying on device code phishing.
AI, Apps, Global Security News, Risk Management
Microsoft unveils Scout, an autonomous AI agent built on OpenClaw
Microsoft has developed a new AI agent that can run autonomously around the clock to complete tasks across Microsoft 365 applications. Microsoft Scout, unveiled at the company’s Build event Tuesday, is a new type of always-on agent based on the OpenClaw agent framework that Microsoft calls “autopilots.” These act on a user’s behalf with their…
AI, Global Security News
Microsoft Exchange Online outage causes email delays, failures
Microsoft is working to address a widespread service issue affecting the mail flow pipeline for Exchange Online customers across North America and Germany. […]
AI, Global Security News, Network Security
Microsoft Entra pushes passkeys, tightens identity security
Microsoft has released multiple identity and network access capabilities for Entra, its family of identity and network access products that help organizations implement a zero trust security strategy, over the last 30 days. Features reaching general availability Identity and authentication updates Phishing-resistant MFA is now available on Linux desktops through the Microsoft identity broker. The…
Global Security News
Microsoft investigates Office Apps, Teams file access issues
Microsoft says an ongoing incident is preventing users of its Teams collaboration platform and free Office for the web cloud-based productivity suite from opening files. […]
AI, Exploits, Global Security News, Risk Management
Microsoft Defender Vulnerability Management gets a smarter exposure score
Microsoft Defender Vulnerability Management’s updated exposure score model adds vulnerability risk signals and asset context to help teams understand where risk is concentrated and which remediation actions are likely to have the greatest impact. The model is available in public preview. “The updated model addresses these customer pain points by combining vulnerability risk, exploitability signals,…
Global Security News
Cisco Secure Access and Microsoft Purview Integration for Simplified Data Protection
Announcing the new integration between Cisco Secure Access and Microsoft Purview designed to provide unified DLP based on Purview policies that can be enforced locally and in the cloud within Cisco Secure Access.
Global Security News
Microsoft confirms outage affecting MFA, My Sign-Ins platform
Microsoft is working to address an ongoing incident preventing customers from setting up multi-factor authentication (MFA) or accessing the My Sign-Ins platform. […]
AI, Apps, Cybersecurity, Endpoint, Exploits, Global Security News, malware, Network Security, Risk Management
Windows 11 Smart App Control explained
In the ever-evolving cybersecurity landscape, Microsoft has introduced various new features in Windows 11 designed to protect users from modern workplace threats. Among such features, Smart App Control (SAC) changes how Windows devices handle, and occasionally block, unwanted or potentially malicious applications. But what exactly is Smart App Control? How does it work, who benefits…
AI, Global Security News
Microsoft fixes KB5089549 Windows security update install issues
Microsoft has resolved a known issue causing installation failures and 0x800f0922 errors when deploying the May 2026 Windows 11 security update (KB5089549). […]
AI, Cybersecurity, Exploits, Global Security News, Risk Management
Microsoft and security researcher’s dueling posts about cybersecurity disclosures get nasty
Microsoft and a prominent cybersecurity researcher have gotten into a very public and rather personal exchange of unpleasantries about what responsible cybersecurity disclosures should mean in 2026. A cybersecurity researcher going by the name Nightmare Eclipse, who has disclosed several cybersecurity holes before patches were available, posted that he had tried to contact Microsoft officials…
AI, APAC, Global Security News, Network Security
Meta considers becoming a hyperscaler
Meta has raised the possibility that it could be joining the likes of Amazon, Microsoft and Google in offering cloud services at some point in the future — although potential customers shouldn’t be adding the company to their suppliers list just yet. When asked about plans for offering such services at the company’s annual shareholders…
AI, Cybersecurity, Global Security News, Government & Policy
Prison communication service Pay Tel exposed hundreds of thousands of driver’s licenses
Cybersecurity firm UpGuard discovered an unprotected Microsoft Azure server managed by Pay Tel containing at least 300,000 driver’s license scans and other government-issued identification documents.
Apps, Global Security News
Cisco Secure Access and Microsoft Edge for Business Integration
Announcing the new integration between Cisco Secure Access and Microsoft Edge for Business, designed to enhance enterprise browser security and protect an organization’s applications and data.
AI, Exploits, Global Security News, Risk Management
Microsoft Calls the Zero-Day Dumps Irresponsible. The Researcher Says Microsoft Started It.
A researcher dropped 6 Windows zero-days with no warning. Three are now exploited in the wild. Microsoft is angry. The researcher says Microsoft ignored them first. Over the past month, a researcher going by Chaotic Eclipse, also known as Nightmare-Eclipse, publicly released details of six unpatched vulnerabilities in Windows components including Defender and BitLocker. No…
AI, Global Security News
Microsoft 365 Copilot redesign brings context and actions into one workspace
Microsoft 365 Copilot, an AI assistant that helps people write, summarize, analyze information, and complete work tasks, has been redesigned. It now serves as a single, flexible entry point to Copilot across Microsoft 365 apps, suggesting relevant actions based on the user’s work. A redesigned interface built around user intent Microsoft applied the design principle…
AI, Europe, Global Security News, malware, Network Security
Resecurity Supports Microsoft DCU in Disrupting Fox Tempest ’s Cybercriminal Code-Signing Ecosystem
Microsoft and Resecurity disrupted Fox Tempest, a malware-signing service that used fake Microsoft certificates to make malware look legitimate. Resecurity supported Microsoft’s Digital Crimes Unit (DCU) in its disruption of Fox Tempest, a financially motivated threat actor operating a malware-signing-as-a-service (MSaaS) capability used by cybercriminals to make malicious files appear legitimate. On May 19, 2026,…
AI, Global Security News
Microsoft Slams Public Zero-Day Disclosures Amid GitHub Researcher Account Removal
Microsoft has come out strongly in favor of Coordinated Vulnerability Disclosure (CVD), urging the research community to share their findings and give affected vendors an opportunity to better understand the impact and address them before they are publicly disclosed. The development comes after a researcher named Chaotic Eclipse (aka Nightmare-Eclipse) disclosed details of multiple zero-day
AI, Global Security News, Risk Management
Microsoft’s Copilot trust test: Zero findings, more models, wider oversight
Microsoft 365 Copilot and Copilot Chat (Copilot) have been recertified under ISO/IEC 42001:2023 by an independent auditor for the second consecutive year. Copilot first received ISO 42001 certification in March 2025. This year’s recertification recorded zero non-conformities and zero improvement observations, resulting in a second audit in a row. The certification evaluates the AI management…
Global Security News, Risk Management
Microsoft Condemns “Uncoordinated” Zero Day Disclosures
Microsoft warned the disclosure of several unpatched vulnerabilities without notice has put “customers at unnecessary risk”
Global Security News
Windows 11 KB5089573 update released with performance improvements
Microsoft has released the KB5089573 preview cumulative update for Windows 11 versions 25H2 and 24H2, which comes with 30 changes, including performance and reliability improvements. […]
AI, Global Security News
AI Chatbot Recommendations Redirect Users to Cryptojacking Malware Sites
Microsoft has warned of an active cryptojacking campaign that makes use of artificial intelligence (AI) chatbot interactions as a mechanism for surfacing malicious download sites. “This emerging delivery technique extends social engineering beyond conventional search results and increases the visibility of malicious software recommendations,” Microsoft Defender Experts and the Microsoft
AI, Apps, Cybersecurity, Exploits, Global Security News, Network Security, Risk Management
Microsoft SharePoint Has a New RCE Flaw. If You Haven’t Patched Yet, Go Do That.
A critical vulnerability, tracked as CVE-2026-45659, in Microsoft SharePoint can allow attackers to achieve remote code execution with little effort. Microsoft released security updates to patch a high-severity SharePoint vulnerability, tracked as CVE-2026-45659 (CVSS score of 8.8), that could allow remote code execution. The flaw does not require complex conditions for exploitation, making it a…
AI, Endpoint, Global Security News, malware, Network Security, Risk Management
Microsoft previews automatic device isolation in Defender for Endpoint
Microsoft is previewing a new automatic device isolation capability in Defender for Endpoint’s auto attack disruption tool to help security pros contain cyber attacks in progress on their IT networks. The company announced the capability earlier this month in a column about new features in Defender. There’s no word on when automatic device isolation will…
AI, Endpoint, Global Security News, malware, Network Security, Risk Management
Microsoft previews automatic device isolation in Defender for Endpoint
Microsoft is previewing a new automatic device isolation capability in Defender for Endpoint’s auto attack disruption tool to help security pros contain cyber attacks in progress on their IT networks. The company announced the capability earlier this month in a column about new features in Defender. There’s no word on when automatic device isolation will…
Endpoint, Global Security News, Network Security
Microsoft Defender can now automatically isolate hacked endpoints
Microsoft is testing a new Defender for Endpoint capability that will automatically isolate compromised endpoints to thwart attackers’ attempts to move laterally across the network. […]
Exploits, Global Security News
Microsoft Patches SharePoint RCE Flaw CVE-2026-45659 Across Server Versions
Microsoft has rolled out updates to fix a remote code execution vulnerability impacting SharePoint that could be exploited by bad actors in attacks without requiring any specialized conditions to be met. The vulnerability, tracked as CVE-2026-45659, carries a CVSS score of 8.8. It has been assigned an important severity. “Deserialization of untrusted data in Microsoft…
Exploits, Global Security News
High-severity SharePoint RCE bug patched by Microsoft (CVE-2026-45659)
Microsoft has released patches for a high-severity remote code execution vulnerability (CVE-2026-45659) in SharePoint that may be exploited in low-complexity attacks. It affects the SharePoint Server Subscription Edition, SharePoint Server 2019, and SharePoint Enterprise Server 2016. About CVE-2026-45659 CVE-2026-45659 stems from Shareoint deserializing untrusted data, and may be exploited by an authenticated attacker to execute…
AI, Global Security News
FAQ: What you need to know about expiring Windows Secure Boot certificates
Microsoft is preparing to make a significant change to the Secure Boot system in Windows that will impact operations for both clients and servers. In a nutshell: The Secure Boot certificates that Microsoft issued 15 years ago are being replaced by newer ones, with the older certificates set to expire beginning in June. To continue…
AI, Global Security News
Microsoft: Domain Controller lookup may fail on Windows Server 2016
Microsoft has confirmed a new known issue affecting Windows Server 2016 systems that causes domain controller lookups to fail after installing the KB5087537 May 2026 security update. […]
AI, Global Security News
Microsoft Access VBA, (Mon, May 25th)
Microsoft Access files (Microsoft Office’s Database) can contain VBA code. But they are not ole or OOXML files. You can’t analyze them with oledump.py: Neither do they contain an embedded OLE file: Microsoft does not publish official documentation for the Microsoft Access file format, like it does for CFB (ole) and OOXML. That inspired me…
Global Security News
FBI warns of Kali365 phishing service targeting Microsoft 365 accounts
The FBI is warning about the Kali365 phishing-as-a-service platform (PhaaS) that is used to hijack Microsoft 365 accounts by abusing OAuth device code authentication to steal session tokens and bypass multi-factor authentication (MFA). […]
AI, Data Security, Europe, Global Security News, Network Security
Microsoft Multiparty Private Offerings Available in 30 European Countries
Microsoft has continued to make investments in Microsoft Marketplace. And starting May 27, 2026, multiparty offers in Marketplace will be available across 30 European countries. Through this expansion, partners will be able to collaborate more easily on deals, simplify transactions, and scale across borders. Starting July 15, Microsoft will expand its offerings to Australia, Japan,…
AI, Exploits, Global Security News, privacy
Google leaks details for Chromium bug that can turn browsers into bots
Chromium — the open-source browser that underpins Google Chrome, Microsoft Edge, and Opera, among others — contains an unpatched vulnerability that attackers can exploit to execute JavaScript code persistently across browser restarts. As a result, the flaw can be used to hijack users’ browsers for distributed denial-of-service attacks, run crypto miners, and more. The vulnerability…
Global Security News
FBI Warns of Kali365 Phishing Service Targeting Microsoft 365 Account
FBI warns of Kali365, a PaaS scam kit that lets cybercriminals bypass MFA and hijack Microsoft 365 accounts without passwords.
AI, Compliance, Global Security News
Microsoft says it’s making AI ‘safe for work’ in your browser
Microsoft is testing the addition of agentic AI to its corporate browser, Edge for Business. A new version, currently available in a limited preview, will help perform routine tasks more efficiently, according to Microsoft’s partner product manager for Edge, Lindsay Kubasik. Agentic AI will help with completing multi-step tasks such as filling in forms, navigating…
AI, Compliance, Global Security News
Microsoft says it’s making AI ‘safe for work’ in your browser
Microsoft is testing the addition of agentic AI to its corporate browser, Edge for Business. A new version, currently available in a limited preview, will help perform routine tasks more efficiently, according to Microsoft’s partner product manager for Edge, Lindsay Kubasik. Agentic AI will help with completing multi-step tasks such as filling in forms, navigating…
AI, Global Security News, Government & Policy, Risk Management
Microsoft, EY to spend $1 billion on helping customers buy agentic AI
Microsoft and EY will spend $1 billion on helping their customers adopt AI over the next five years. The billion will support assisting clients with pioneering AI projects and capability building, said EY’s global Microsoft alliance leader, Paul Clark. Clients will be able to access those resources based on their specific needs, he said. “We’re…
AI, Global Security News
Microsoft 365 users targeted by new phishing threat that bypasses MFA
Microsoft 365 access tokens are being targeted by an emerging Phishing-as-a-Service (PhaaS) platform called Kali365, the FBI is warning. First observed in April 2026, Kali365 has been distributed through Telegram, allowing cybercriminals to obtain Microsoft 365 access tokens and bypass MFA without stealing user credentials. “Kali365 lowers the barrier of entry, providing less-technical attackers access…
AI, Cybersecurity, Endpoint, Exploits, Global Security News, malware
Microsoft patches two zero-day flaws in Defender
Microsoft released emergency fixes for two zero-day vulnerabilities in the malware protection components of Microsoft Defender. The flaws allow local attackers to gain system-level privileges or cause the anti-malware service to stop working correctly. Both conditions are valuable in a malware attack, first to prevent detection if the system relies only on Microsoft endpoint protection…
AI, Cybersecurity, Exploits, Global Security News, Network Security, Risk Management
U.S. CISA adds Microsoft and Adobe flaws to its Known Exploited Vulnerabilities catalog
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Microsoft and Adobe flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Windows Shell and ConnectWise ScreenConnect flaws to its Known Exploited Vulnerabilities (KEV) catalog. Below are the flaws added to the catalog: CVE-2008-4250 Microsoft Windows Buffer Overflow Vulnerability CVE-2009-1537 Microsoft DirectX NULL…
AI, Global Security News
Microsoft open-sources tools for designing and testing AI agents
Microsoft has open-sourced two tools aimed at bringing security discipline to AI agent development: Clarity, a structured design review tool, and RAMPART, a continuous testing framework. The release comes from Microsoft’s AI Red Team, the company’s internal unit that stress-tests its own AI systems, and both tools have been used internally before being open-sourced. RAMPART:…
AI, Apps, Compliance, Data Breaches, Exploits, Global Security News, Risk Management
SharePoint On-Prem End of Life: 2026 Migration Guide
With Microsoft ending support for SharePoint Server 2016 and 2019 on July 14, 2026, organizations still running on-premises SharePoint face a shrinking window to modernize aging collaboration environments before security updates, bug fixes, and vendor support disappear. SharePoint 2019 On-Prem lives on, but without Microsoft support For over a decade, local SharePoint deployments have served…
AI, Global Security News, privacy
Microsoft refreshes Surface line with biz-friendly features – and a high price tag
Microsoft this week refreshed its Surface for Business range of devices, adding features designed to appeal to enterprises. But high prices for the devices might be hard for IT buyers to swallow. Microsoft announced a new Surface Pro for Business on Tuesday, alongside two variants of its Surface Laptop for Business devices – a premium…
AI, Exploits, Global Security News, malware
Microsoft Defender vulnerabilities exploited in the wild (CVE-2026-41091, CVE-2026-45498)
Attackers are exploiting two Microsoft Defender vulnerabilities (CVE-2026-41091 and CVE-2026-45498), Microsoft acknowledged and CISA confirmed by adding them to its Known Exploited Vulnerabilities catalog. The vulnerabilities CVE-2026-41091 allows for local privilege elevation (LPE), and is caused by the Microsoft Malware Protection Engine improperly resolving links before accessing files. “An attacker who successfully exploited this vulnerability…
AI, Exploits, Global Security News
Microsoft Warns of Two Actively Exploited Defender Vulnerabilities
Microsoft has disclosed that a privilege escalation and a denial-of-service flaw in Defender has come under active exploitation in the wild. The former, tracked as CVE-2026-41091, is rated 7.8 on the CVSS scoring system. Successful exploitation of the flaw could allow an attacker to gain SYSTEM privileges. “Improper link resolution before file access (‘link following’)…
AI, Apps, Global Security News, Risk Management
Microsoft releases open-source tools to operationalize AI agent safety
Microsoft has open-sourced two new tools aimed at bringing AI safety checks much earlier into the agent development lifecycle. The tools, called Rampart and Clarity, were announced this week as part of Microsoft’s broader push to operationalize safety engineering for agentic AI. “We built these tools because we believe that AI safety has to become…
Exploits, Global Security News
Microsoft warns of new Defender zero-days exploited in attacks
On Wednesday, Microsoft started rolling out security patches for two Defender vulnerabilities that have been exploited in zero-day attacks. […]
AI, Cybersecurity, Exploits, Global Security News, Risk Management
Microsoft is working on a patch for ‘YellowKey’ attack on Bitlocker, offers temporary fix
Microsoft says it is considering a patch for a zero-day vulnerability, dubbed YellowKey, that allows attackers with access to a Windows device to bypass Bitlocker encryption protection and read and write files. The flaw was disclosed last week, and there is already a public proof of concept available. The company issued an advisory Tuesday saying…
AI, Cybersecurity, Exploits, Global Security News, Risk Management
Microsoft is working on a patch for ‘YellowKey’ attack on Bitlocker, offers temporary fix
Microsoft says it is considering a patch for a zero-day vulnerability, dubbed YellowKey, that allows attackers with access to a Windows device to bypass Bitlocker encryption protection and read and write files. The flaw was disclosed last week, and there is already a public proof of concept available. The company issued an advisory Tuesday saying…
AI, Data Breaches, Exploits, Global Security News, Risk Management
Meet Rampart and Clarity, Microsoft’s new red team combo AI agents
On Wednesday, Microsoft released two new red teaming tools—Rampart and Clarity—,meant to help developers design more secure agentic software and assist incident responders in the face of ongoing breaches. Rampart is built on top of PyRIT, an existing open automation framework Microsoft developed for red teaming generative AI systems. But while PyRIT scans already-built systems…
AI, Apps, Endpoint, Global Security News, malware, Network Security, Risk Management
Microsoft Disrupts Malware-Signing Service Used by Ransomware Gangs
Microsoft says it disrupted a malware-signing service that abused Azure Artifact Signing to create fraudulent certificates used in ransomware and malware attacks. The Fox Tempest operation allegedly helped cybercriminals distribute malware disguised as trusted software to evade Windows defenses and fool users. “Fox Tempest doesn’t directly target victims but instead provides supporting services that enable…
AI, Global Security News, Risk Management
Microsoft Open-Sources RAMPART and Clarity to Secure AI Agents During Development
Microsoft has unveiled two new open-source tools called RAMPART and Clarity to assist developers in better testing the security of artificial intelligence (AI) agents. RAMPART, short for Risk Assessment and Measurement Platform for Agentic Red Teaming, functions as a Pytest-native safety and security testing framework for writing and running safety and security tests for AI…
AI, Cybersecurity, Exploits, Global Security News
Microsoft issues YellowKey mitigation, no patch yet
Microsoft acknowledged the YellowKey BitLocker bypass flaw and released mitigations, urging admins to disable autofstx.exe and enable TPM+PIN. A week after Chaotic Eclipse publicly dropped the YellowKey vulnerability, Microsoft acknowledged it and published a mitigation. Not a patch, a mitigation. The distinction matters, and we will get to why. The flaw, tracked as CVE-2026-45585 (CVSS…
AI, Global Security News, malware, Network Security
Microsoft Takes Down Malware-Signing Service Behind Ransomware Attacks
Microsoft on Tuesday said it disrupted a malware-signing-as-a-service (MSaaS) operation that weaponized the company’s Artifact Signing system to deliver malicious code and conduct ransomware and other attacks, compromising thousands of machines and networks across the world. The tech giant attributed the activity to a threat actor it calls Fox Tempest, which it said offered the…
AI, Global Security News, Network Security
Copilot Chat: Your hub for document creation and analysis
Many years ago, Microsoft created a handy hub for its Office suite: type office.com into your browser, and you’d see a web page where you could launch the various Office apps — Word, Excel, PowerPoint, and so on — or access recently used documents in those apps. This hub’s appearance changed a bit over time…
Exploits, Global Security News
Microsoft provides mitigation for “YellowKey” BitLocker bypass flaw (CVE-2026-45585)
Microsoft is working on a fix for CVE-2026-45585 (aka “Yellowkey”), a vulnerability that can be used by attackers to bypass protections offered by BitLocker, the full-disk encryption feature built into Windows, and access users’ data. In the meantime, the company has provided step-by-step mitigation advice to protect affected Windows devices from exploitation. CVE-2026-45585 and the…
Global Security News
Microsoft Releases Mitigation for YellowKey BitLocker Bypass CVE-2026-45585 Exploit
Microsoft on Tuesday released a mitigation for a BitLocker bypass vulnerability named YellowKey following its public disclosure last week. The zero-day flaw, now tracked as CVE-2026-45585, carries a CVSS score of 6.8. It has been described as a BitLocker security feature bypass. “Microsoft is aware of a security feature bypass vulnerability in Windows publicly referred…
Global Security News
Microsoft shares mitigation for YellowKey Windows zero-day
Microsoft has shared mitigations for YellowKey, a recently disclosed Windows BitLocker zero-day vulnerability that grants access to protected drives. […]
AI, Apps, Europe, Global Security News, malware
Microsoft disrupts malware code-signing service used by ransomware gangs
Microsoft has disrupted the infrastructure powering the largest malware code-signing service used to help ransomware groups and other cybercriminals make malicious programs harder to detect on Windows. The threat actors behind the service used stolen identities and impersonated legitimate organizations to obtain more than 1,000 code-signing certificates. Microsoft seized the group’s website, signspace[.]cloud, revoked the…
Global Security News, malware
Cybercrime service disrupted for abusing Microsoft platform to sign malware
Microsoft says it has disrupted a malware-signing-as-a-service (MSaaS) operation that abused the company’s Artifact Signing service to generate fraudulent code-signing certificates used by ransomware gangs and other cybercriminals. […]
Apps, Global Security News
Microsoft Self-Service Password Reset abused in Azure data theft attacks
A threat actor targeting Microsoft 365 and Azure production environments is stealing data in attacks that abuse legitimate applications and administration features. […]
AI, china, Global Security News, Government & Policy, malware, Network Security
Microsoft dismantled malware-signing network Fox Tempest
Microsoft disrupted Fox Tempest, a malware-signing-as-a-service (MSaaS) that allowed attackers to sign malware with fake trusted certificates. Microsoft said it disrupted a cybercrime operation run by a threat actor named Fox Tempest, which helped threat actors sign malware with short-lived certificates to make malicious software appear legitimate. The service abused Microsoft Artifact Signing and supported…
AI, Global Security News
Microsoft plans to improve Windows 11 driver quality in 2026
Microsoft plans to raise the quality bar of Windows 11 drivers, as drivers “sit at the heart of every Windows experience” and connect the OS to the “silicon, components, and peripherals.” […]
Global Security News
Microsoft blames undismissible Teams location prompts on macOS update
Microsoft has confirmed user reports that the Teams team collaboration app is displaying non-dismissible location prompts on some macOS systems. […]
AI, Apps, china, Exploits, Global Security News, Government & Policy, malware
Microsoft disrupts cybercrime service that abused software verification systems en masse
Microsoft seized infrastructure and disrupted a cybercrime service that created and sold more than 1,000 code-signing certificates that other cybercriminals used to make malware-riddled software appear trusted and legitimate for follow-on cyberattacks, including ransomware, the company said Tuesday. The financially-motivated threat group, which Microsoft tracks as Fox Tempest, provided the malware-signing-as-a-service to multiple ransomware groups,…
AI, Global Security News
New macOS infostealer impersonates Apple, Microsoft, and Google in a single attack chain
A SHub macOS infostealer variant called Reaper impersonates Apple, Microsoft, and Google to trick users into executing malicious code, then targets browser data, password managers, and cryptocurrency wallets while establishing persistence for continued access, SentinelOne found. ClickFix gives way to a new delivery method Consistent with earlier SHub versions, Reaper uses a multi-stage execution chain.…
AI, Global Security News, Network Security
Microsoft confirms patching issues in restricted Windows networks
Microsoft says customers in restricted network environments may encounter Windows Update failures after installing the January 2026 optional non-security preview updates. […]
AI, Global Security News
Microsoft to retire ‘Together Mode,’ its virtual meeting space for Teams
Microsoft plans to retire “Together Mode” in Teams next month and is encouraging users to access its Gallery view for video calls instead. The company launched Together Mode in the early months of the Covid-19 pandemic, as Teams usage rocketed and businesses sought ways to connect staff when physical offices closed due to social distancing…
Global Security News
Microsoft testing adjustable taskbar, Start menu in Windows 11
Microsoft has finally brought back the resizable taskbar and Start menu to Windows 11 in the latest preview version rolling out to Insiders in the Experimental channel. […]
AI, Global Security News
Microsoft confirms Windows 11 security update install issues
Microsoft has confirmed that the May 2026 Windows 11 security update (KB5089549) fails to install on some systems and triggers 0x800f0922 errors. […]
AI, Global Security News
Microsoft rejects critical Azure vulnerability report, no CVE issued
A security researcher claims Microsoft quietly fixed an Azure Backup for AKS vulnerability after rejecting his report, and without issuing a CVE. Microsoft disputes the claim, telling BleepingComputer the behavior was expected and that “no product changes were made,” despite the researcher documenting a silent fix. […]
AI, china, Cybersecurity, Exploits, Global Security News, Network Security, Risk Management
U.S. CISA adds a flaw in Microsoft Exchange Server to its Known Exploited Vulnerabilities catalog
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a flaw in Microsoft Exchange Server to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a flaw in Microsoft Exchange Server, tracked as CVE-2026-42897 (CVSS score of 8.1), to its Known Exploited Vulnerabilities (KEV) catalog. This week, Microsoft warned that threat actors are…
AI, Apps, Cybersecurity, Exploits, Global Security News, Risk Management
Exchange Server zero-day vulnerability can be triggered by opening a malicious email
A newly discovered zero-day vulnerability in Microsoft Exchange Server has experts declaring an emergency and urging CSOs to think about the need to abandon on-premises email solutions. “Because it’s already being exploited in the wild, this isn’t a ‘patch next week situation; it’s a ‘mitigate right now’ emergency,” warned Rob Enderle of the Enderle Group.…
AI, APAC, Apps, Endpoint, Exploits, Global Security News, Network Security, Risk Management
For May, Patch Tuesday means 139 updates — but no zero-days
Microsoft this week released 139 updates affecting Windows, Office, .NET, and SQL Server (though there were no updates for Microsoft Exchange Server). Despite the absence of zero-days, the May Patch Tuesday update still requires Patch Now recommendations for Windows and Office. The combination of three unauthenticated network RCEs (Netlogon, DNS Client, and SSO Plugin for…
Global Security News
Microsoft Edge to stop loading cleartext passwords in memory on startup
Microsoft is updating the Edge web browser to ensure it no longer loads saved passwords into process memory in clear text at startup. […]
AI, china, Cybersecurity, Exploits, Global Security News, Network Security, Risk Management
CVE-2026-42897: Microsoft confirms active exploitation of Exchange Server zero-day
Microsoft warned that attackers are exploiting a new Exchange Server zero-day vulnerability, tracked as CVE-2026-42897, in the wild. Microsoft warned that threat actors are actively exploiting a new Exchange Server zero-day vulnerability tracked as CVE-2026-42897 (CVSS score 8.1). The vulnerability is an improper neutralization of input during web page generation (‘cross-site scripting’) in Microsoft Exchange…
AI, Exploits, Global Security News
CVE-2026-42897: Exchange Server OWA Spoofing Flaw Exploited via Crafted Email
Microsoft has disclosed a vulnerability impacting on-premise versions of Exchange Server that is already seeing active exploitation in the wild. Tracked as CVE-2026-42897, the issue carries a CVSS score of 8.1 and affects Exchange Server 2016, Exchange Server 2019, and Exchange Server Subscription Edition, while Exchange Online is not impacted. Microsoft describes it as a…
Global Security News
Microsoft to automatically roll back faulty Windows drivers
Microsoft is introducing a new Windows Update capability that will allow it to remotely roll back problematic Windows drivers delivered through Windows Update. […]
Exploits, Global Security News, Network Security
Unpatched Microsoft Exchange Server vulnerability exploited (CVE-2026-42897)
A critical cross-site scripting (XSS) vulnerability (CVE-2026-42897) in Microsoft Exchange Server is being exploited by attackers, Microsoft warned on Thursday. A permanent fix is still in the works. In the meantime, Microsoft provided temporary mitigations. About CVE-2026-42897 CVE-2026-42897 affects on-premises versions of Microsoft Exchange Server: Subscription Edition RTM, 2019, and 2016. Exchange Online is not…
Exploits, Global Security News
Microsoft warns of Exchange zero-day flaw exploited in attacks
On Thursday, Microsoft shared mitigations for a high-severity Exchange Server vulnerability exploited in attacks that allow threat actors to execute arbitrary code via cross-site scripting (XSS) while targeting Outlook on the web users. […]
AI, Exploits, Global Security News
On-Prem Microsoft Exchange Server CVE-2026-42897 Exploited via Crafted Email
Microsoft has disclosed a new security vulnerability impacting on-premise versions of Exchange Server that it said has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-42897 (CVSS score: 8.1), has been described as a spoofing bug stemming from a cross-site scripting flaw. An anonymous researcher has been credited with discovering and reporting…
AI, Global Security News, Network Security
KongTuke hackers now use Microsoft Teams for corporate breaches
Initial access broker KongTuke has moved to Microsoft Teams for social engineering attacks, taking as little as five minutes to gain persistent access to corporate networks. […]
Global Security News
Microsoft’s WinUI agent plugin trims token use by over 70% during development
Microsoft published a plugin on May 13 that lets GitHub Copilot CLI and Claude Code drive the full WinUI 3 development cycle, from project scaffolding through signed MSIX packaging. The WinUI agent plugin ships one agent, eight skills, and several supporting tools targeting the loop developers run dozens of times a day: scaffold, build, run,…
AI, Global Security News
Microsoft turns Copilot Studio into an AI agent control center
The Microsoft Copilot Studio April 2026 updates improve visibility and governance for admins and expand workflow capabilities for managing agents. Copilot surfaces agent status in the authoring experience, giving admins insight into each agent’s security and protection posture. Customers can identify issues such as authentication gaps or policy impacts and investigate them at the source.…
Cybersecurity, Global Security News
Windows Zero-Days Expose BitLocker Bypasses And CTFMON Privilege Escalation
An anonymous cybersecurity researcher who disclosed three Microsoft Defender vulnerabilities has returned with two more zero-days involving a BitLocker bypass and a privilege escalation impacting Windows Collaborative Translation Framework (CTFMON). The security defects have been codenamed YellowKey and GreenPlasma, respectively, by the researcher, who goes by the online aliases Chaotic Eclipse
AI, Exploits, Global Security News
Simple bypass of the link preview function in Outlook Junk folder, (Thu, May 14th)
Besides serving as a place where Microsoft Outlook places suspected spam, the Outlook Junk folder has one additional function that can be quite helpful when it comes to identifying malicious messages. Any e-mail placed in this folder is stripped of all formatting, and destinations of all links included in the message become visible to the…
Cybersecurity, Exploits, Global Security News
Windows BitLocker zero-day gives access to protected drives, PoC released
A cybersecurity researcher has published proof-of-concept (PoC) exploits for two unpatched Microsoft Windows vulnerabilities named YellowKey and GreenPlasma, which are a BitLocker bypass and a privilege-escalation flaw. […]
Global Security News
Microsoft fixes BitLocker recovery issue only for Windows 11 users
Microsoft has addressed a known issue causing some Windows 11 systems to boot into BitLocker recovery after installing the April 2026 Windows security updates. […]
Europe, Global Security News
Microsoft fixes Windows Autopatch bug installing restricted drivers
Microsoft has fixed a Windows Autopatch bug that caused driver updates restricted by administrative policies to be deployed on some Autopatch-managed Windows devices in the European Union. […]
AI, Global Security News
Microsoft’s MDASH AI System Finds 16 Windows Flaws Fixed in Patch Tuesday
Microsoft has unveiled a new multi-model artificial intelligence (AI)-driven system called MDASH to facilitate vulnerability discovery and remediation at scale, adding that it’s being tested by some customers as part of a limited private preview. MDASH, short for multi-model agentic scanning harness, is designed as a model-agnostic system that uses bespoke AI agents for different…
AI, Global Security News
Microsoft’s new AI system finds 16 Windows flaws, including four critical RCEs
Microsoft has unveiled a new AI-driven vulnerability discovery system that identified 16 previously unknown Windows vulnerabilities, including four critical remote code execution flaws, in what security analysts say could mark a major shift in how software vulnerabilities are discovered and remediated. The system, codenamed MDASH, was developed by Microsoft’s Autonomous Code Security team alongside the…
AI, Global Security News
Microsoft’s new AI system finds 16 Windows flaws, including four critical RCEs
Microsoft has unveiled a new AI-driven vulnerability discovery system that identified 16 previously unknown Windows vulnerabilities, including four critical remote code execution flaws, in what security analysts say could mark a major shift in how software vulnerabilities are discovered and remediated. The system, codenamed MDASH, was developed by Microsoft’s Autonomous Code Security team alongside the…
Global Security News
Microsoft says some users can’t install Office on Windows 365 devices
Microsoft says some customers are experiencing issues downloading and installing Office on their Windows 365 devices. […]
AI, Exploits, Global Security News, Network Security
Microsoft’s agentic security system found four critical Windows RCE flaws
Microsoft responded to growing competition in AI security by announcing that its new agentic security system helped researchers discover 16 new vulnerabilities in the Windows networking and authentication stack, including four critical remote code execution (RCE) flaws. MDASH architecture diagram (Source: Microsoft) Two of the four flaws — CVE-2026-40361 and CVE-2026-40364 — were deemed by…
Global Security News
Microsoft Patches 138 Vulnerabilities, Including DNS and Netlogon RCE Flaws
Microsoft on Tuesday released patches for 138 security vulnerabilities spanning its product portfolio, although none of them have been listed as publicly known or under active attack. Of the 138 flaws, 30 are rated Critical, 104 are rated Important, three are rated Moderate, and one is rated Low in severity. As many as 61 vulnerabilities…