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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…

How Can MSSPs Scale Threat Detection Without Burning Out Their Analysts?

Scaling threat detection as an MSSP doesn’t mean hiring more analysts — it means enabling the analysts you already have to handle more clients, more alerts, and more complex threats without burning out. The practical path forward combines three capabilities: continuous real-time intelligence that keeps detection systems current automatically, instant IOC investigation that cuts triage…

SHub Reaper impersonates Apple, Google, and Microsoft in one MacOS attack chain

A newly disclosed macOS infostealer campaign is exploiting user trust in some of the biggest names in tech to slip past defenses.  Researchers at SentinelOne have detailed a new variant of the SHub malware family, dubbed “Reaper,” that impersonates Apple, Google, and Microsoft at different stages of a single attack chain targeting Mac users. The…

Why some security fixes never reach your vulnerability dashboard

On April 22, for roughly 90 minutes, a malicious version of Bitwarden CLI appeared on npm. Version 2026.4.0 contained a credential-stealing payload that executed an obfuscated loader and harvested AWS, Azure, GCP, GitHub, and npm tokens from any developer machine that ran npm install. The attackers reached Bitwarden’s npm publishing path through a compromised GitHub…

A malicious VS code extension just breached GitHub ‘s internal repositories

One employee installed a trojanized VS Code extension. Result: ~3,800 GitHub internal repositories exfiltrated. TeamPCP claims credit, wants $50K. There is something almost ironic about GitHub, the platform that hosts the code for most of the world’s software, getting breached through a trojanized plugin for a code editor. But that is exactly what happened, and…

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…

AntV data visualization tool the latest to be hit by ongoing npm supply chain attacks

The world’s largest open-source registry, node package manager (npm), has been hit by another fast-moving malware attack, this time targeting the widely-used AntV enterprise data visualization tool. Unlike last week’s high-profile npm attack on TanStack, which exploited a complex GitHub Actions cache poisoning weakness, the latest incident early on May 19 took the more conventional…

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…

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,…

Internet Explorer may be dead, but its ghost still runs malware

Microsoft’s aging “mshta.exe” utility, a leftover component from Internet Explorer, is still being actively abused in modern malware campaigns years after the browser itself was retired. According to new research from Bitdefender, attackers continue to abuse Microsoft HTML Application Host (MSHTA), a built-in Windows utility capable of executing VBScript and JavaScript from local or remote…

Top 5 Phishing-Driven Social Engineering Attacks on Companies in 2026

Your employees are not falling for “bad grammar” phishing anymore. They are being pulled into fake Microsoft logins, banking pages, AI tool instructions, real OAuth flows, and event invitations that look close enough to daily work to pass without alarm.  For CISOs, that is the real social engineering problem in 2026: attacks are no longer…

7 tips for accelerating cyber incident recovery

Despite strong and redundant defenses, enterprises remain vulnerable to a wide range of cyberattacks. And because attacks — and cyber incidents — are inevitable, developing an incident response and recovery process that’s quick, comprehensive, and coordinated is essential. Expediting incident recovery time is critical because the longer an outage persists, the more costs, risk, and business…

Massive MENA cybercrime Operation Ramz disrupts infrastructure and arrests 201 suspects

INTERPOL led Operation Ramz in MENA, resulting in 201 arrests and 382 suspects tied to cybercrime networks. INTERPOL coordinated Operation Ramz across the Middle East and North Africa, leading to 201 arrests and identifying 382 additional suspects. ” A first-of-its-kind cybercrime operation in the MENA region has led to the arrest of 201 individuals, with a…

Shai-Hulud worm copycats emerge after source code leak

Shai-Hulud worm copycats are already attacking NPM developers after its source code leaked, enabling fast supply chain exploitation. The first copycats of the Shai-Hulud worm have already started showing up online, only a few days after the malware’s source code was dumped on GitHub. Researchers had warned this would happen almost immediately, and they were…

TeamPCP Supply Chain Campaign: Activity Through 2026-05-17, (Mon, May 18th)

Since the last update, the TeamPCP supply chain campaign produced its loudest stretch since the March Trivy disclosure: an officially confirmed Checkmarx Jenkins plugin compromise and a new self-spreading Mini Shai-Hulud worm across npm and PyPI. Bottom line up front Two TeamPCP events broke within 48 hours of each other and doubled attention on the campaign.…

Interpol leads cybercrime crackdown across 13 countries in Middle East, North Africa

Interpol coordinated an expansive investigation with 13 countries in the Middle East and North Africa to disrupt and take down cybercrime operations, including phishing services and tools, malware and scams. The law enforcement effort netted 201 arrests, led to the seizure of 53 servers and disrupted multiple cybercrime services, Interpol said Monday. Operation Ramz, which…

Device Code Phishing Targets Microsoft 365 Users  

Cybercriminals are adopting device code phishing as a new way to bypass traditional phishing defenses and compromise enterprise Microsoft 365 accounts.  According to Proofpoint, threat actors are abusing legitimate Microsoft authentication workflows to steal authentication tokens without using traditional phishing pages.   “The spike in device code phishing coincides with publicly released criminal toolkits, and the…

ANY.RUN Turns 10: Special Offers for Stronger Security Operations

Ten years in cybersecurity is a long journey. Threats have changed, attacks have become harder to spot, and security teams now need answers faster than ever.  ANY.RUN has grown with those teams.  What started as an interactive sandbox is now a trusted company with threat analysis and intelligence solution used by 15,000+ organizations, 600,000 security professionals, and teams at Fortune…

The Canvas breach proved that prevention is no longer enough

Earlier this month, ShinyHunters breached Instructure’s Canvas platform twice within a single week — stealing 3.65 terabytes of data from approximately 275 million users across more than 8,000 institutions. The group defaced login pages at hundreds of schools during final exam periods, forced Canvas offline, and extracted a ransom payment before Congress opened a formal…

201 arrested in INTERPOL disruption of phishing and fraud networks

Operation Ramz, a cybercrime initiative coordinated by INTERPOL across the MENA region, focused on disrupting phishing campaigns, malware activity, and cyber scams that caused substantial financial losses across the region. The operation resulted in the arrest of 201 individuals and the identification of an additional 382 suspects. Moroccan authorities seized computers, smartphones and external hard…

Pre-Stuxnet Fast16 Malware Tampered with Nuclear Weapons Simulations

A new analysis of the Lua-based fast16 malware has confirmed that it was a cyber sabotage tool designed to tamper with nuclear weapons testing simulations. According to Broadcom-owned Symantec and Carbon Black teams, the pre-Stuxnet tool was engineered to corrupt uranium-compression simulations that are central to nuclear weapon design. “Fast16’s hook engine is selectively interested…

SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 97

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter JDownloader site hacked to replace installers with Python RAT malware     New TrickMo Variant: Device Take Over malware targeting Banking, Fintech, Wallet & Auth apps   Threat Actor Mr_Rot13 Actively Exploits CVE-2026-41940 for Backdoor Deployment   Operation…

Security Affairs newsletter Round 577 by Pierluigi Paganini – INTERNATIONAL EDITION

A new round of the weekly Security Affairs newsletter has arrived! Every week, the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. Attackers exploit Funnel Builder bug to inject e-skimmers into e-stores Pwn2Own Berlin 2026, Day Three: DEVCORE…

Attackers exploit Funnel Builder bug to inject e-skimmers into e-stores

Attackers are exploiting a critical flaw in the WordPress Funnel Builder plugin to inject skimming code into WooCommerce checkout pages. A critical vulnerability in the WordPress Funnel Builder plugin is being actively exploited to inject malicious JavaScript into WooCommerce checkout pages, according to Sansec researchers. Funnel Builder by FunnelKit is a checkout and upsell plugin…

Russian APT Turla builds long-term access tool with Kazuar Botnet evolution

Russia-linked APT group Turla turned its Kazuar malware into a stealthy P2P botnet for long-term access to compromised systems. Russia-linked APT group Turla upgraded its Kazuar backdoor into a modular peer-to-peer botnet designed for stealth and persistent access to infected systems. Microsoft researchers say the malware allows attackers to maintain long-term control while making detection…

OpenAI hit by supply chain attack linked to malicious TanStack packages

OpenAI said the TanStack supply chain attack compromised two employee devices and exposed credentials from code repositories. OpenAI confirmed that the recent TanStack supply chain attack compromised two employee devices and exposed credential material stored in internal source code repositories. The incident began after the TeamPCP hacking group abused weaknesses in the package publishing process…

Expired domain leads to supply chain attack on node-ipc npm package

A popular npm package called node-ipc has been compromised, with hackers publishing malicious versions that bundle credential stealing malware. The root cause of the compromise was an expired domain name that attackers managed to register in order to hijack a maintainer’s account. The node-ipc package has had malware added to its code in the past.…

The AWS AI Security Framework: Securing AI with the right controls, at the right layers, at the right phases

TL;DR for busy executives The AWS AI Security Framework helps security leaders move fast and stay secure with AI. Security compounds from day 1 as workloads evolve from prototype to production to scale. Assess first. Request a no-cost SHIP engagement to baseline your posture and build a prioritized roadmap. Phase 1 – Foundational (zero to…

CVE-2026-20182: Critical Authentication Bypass in Cisco SD-WAN Can Grant Admin Access

A vulnerability affecting Cisco Catalyst SD-WAN Controller has drawn urgent attention after Cisco, Rapid7, and CISA confirmed active exploitation. CVE-2026-20182 is a critical authentication bypass flaw in Cisco Catalyst SD-WAN Controller and Cisco Catalyst SD-WAN Manager that carries a CVSS 10.0 score and can let an unauthenticated remote attacker gain administrative privileges on an affected…

7AI Uncovers Browser Extension Campaign Evading EDR Defenses

A browser-extension campaign is bypassing traditional EDR defenses by injecting remote JavaScript payloads directly into authenticated browser sessions.   Researchers at 7AI uncovered the operation, dubbed CRXfiltrate, after observing suspicious outbound traffic originating from a seemingly harmless Chrome color-picker extension.  According to the researchers, the campaign remained active across enterprise environments and delivered operator-controlled payloads without…

Cybersecurity Insider Survey: AI Is Fueling a New Generation of Threat Actors

Artificial intelligence continues reshaping the cybersecurity landscape, and many security professionals now believe it is also helping create a more capable generation of cybercriminals.  We recently surveyed thousands of subscribers to the Cybersecurity Insider newsletter and asked a simple but important question: Is AI creating a new generation of skilled threat actors? Key Takeaways of…

What 45 Days of Watching Your Own Tools Will Tell You About Your Real Attack Surface

In Your Biggest Security Risk Isn’t Malware — It’s What You Already Trust, we made a simple argument: the most dangerous activity inside most organizations no longer looks like an attack. It looks like administration. PowerShell, WMIC, netsh, Certutil, MSBuild — the same trusted utilities your IT team uses every day are also the preferred…

Ghostwriter group resumes attacks on Ukrainian Government targets

ESET uncovered new Ghostwriter (aka FrostyNeighbor) activity targeting Ukrainian government organizations in a campaign active since March 2026. ESET researchers published a new report documenting fresh activity attributed to the APT group FrostyNeighbor, aka Ghostwriter, active since at least March 2026, targeting Ukrainian governmental organizations. The campaign is similar to previous FrostyNeighbor’s campaigns. The threat…

[Guest Diary] New Malware Libraries means New Signatures, (Fri, May 15th)

This is a Guest Diary by Gokul Prema Thangavel, an ISC intern as part of the SANS.edu Bachelor Degree Program. Introduction The SHA-256 a8460f446be540410004b1a8db4083773fa46f7fe76fa84219c93daa1669f8f2 is one of the most-observed Outlaw / Shellbot artifacts on the public internet. VirusTotal first ingested it on 5 July 2018 [2]. It is the SHA-256 of the authorized_keys file written…

The Massive Canvas Cyberattack That Allegedly Ended in a Secret Deal With Hackers

The cyberattacks targeting Instructure’s Canvas learning management system unfolded as at least two distinct but likely connected operational phases that exposed the fragility of browser-based SaaS trust models inside modern educational infrastructure. What began in late April as a suspected cloud-platform compromise involving large-scale data exfiltration evolved by early May into a far more aggressive…

White House cyber official: identity security matters more than ever in the age of AI

As AI becomes more integrated into federal IT (and attacker toolsets) government agencies will need to focus their resources on regulating and monitoring the identities that access their network, a top White House cybersecurity official said Thursday. Nick Polk, branch director for federal cybersecurity in the Executive Office of the President, said that while AI…

FlowerStorm phishing gang adopts virtual-machine obfuscation to evade email defenses

A widely active phishing-as-a-service (PhaaS) operation known as FlowerStorm has begun using a browser-based virtual machine to conceal credential theft code, marking what researchers say is an escalation in phishing-kit sophistication that could make attacks harder for traditional email and static-analysis tools to detect. Researchers at Sublime Security said in April that they identified the…

LATAM Under Siege: Agent Tesla’s 18-Month Credential Theft Campaign Against Chilean Enterprises

Credential theft malware rarely announces itself with ransomware-level noise. Instead, it operates like a silent siphon hidden inside everyday business workflows: invoices, payroll files, purchase orders, procurement requests. Agent Tesla campaigns are especially dangerous because they target the operational arteries of organizations, harvesting credentials that enable deeper compromise, business email compromise (BEC), financial fraud, cloud account takeover, and long-term…

FamousSparrow targets Azerbaijani energy sector in multi-wave espionage campaign

Chinese-linked FamousSparrow repeatedly targeted an Azerbaijani oil and gas company, reusing the same entry point in three intrusions from Dec 2025 to Feb 2026. Chinese-linked threat actor FamousSparrow has conducted a sustained intrusion campaign against an Azerbaijani oil and gas company, returning to the same compromised entry point three separate times between late December 2025…

Detecting and preventing crypto mining in your AWS environment

This article guides you on how to use Amazon GuardDuty to identify and mitigate cryptocurrency mining threats in your Amazon Web Services (AWS) environment. You’ll learn about the specialized detection capabilities of GuardDuty and best practices to build a multi-layered defense strategy that protects your infrastructure costs and security posture. Understanding the crypto mining challenge…

NVIDIA NemoClaw Research Highlights AI Sandbox Exfiltration Risks

Researchers at Lasso have found that sandboxing autonomous AI agents may not be enough to stop sensitive data theft after demonstrating multiple exfiltration techniques against NVIDIA’s NemoClaw and OpenShell environments.  The findings show how attackers can abuse trusted tools and approved outbound connections to quietly steal credentials, manipulate agent behavior, and maintain persistence inside AI…

Daybreak is OpenAI’s answer to the AI arms race in cybersecurity

OpenAI has unveiled Daybreak, a cybersecurity initiative that combines the company’s large language models with its Codex agentic framework to help organizations identify, patch, and validate software vulnerabilities across the development lifecycle. The platform is built around three model tiers: GPT-5.5 for general-purpose use, GPT-5.5 with Trusted Access for Cyber for verified defensive security workflows,…

LW ROUNDTABLE: Microsoft Edge normalizes credential exposure — security pros push back

By design. Two words that have done an awful lot of heavy lifting in the cybersecurity industry over the years. They tend to surface whenever a vendor wants to wave off a serious finding without fixing it. Related: The unending password problem Microsoft just deployed them again. This time in response to a Norwegian researcher…

ClickFix finds a backup plan in PySoxy proxy chains

ClickFix, a one-shot social engineering technique that tricks victims into executing malicious workflows disguised as fixes to technical issues in their systems, has got a persistence upgrade. In a one-off instance, ReliaQuest researchers have spotted an intrusion chain using scheduled tasks, PowerShell-based command-and-control (C2), and a unique abuse of the decade-old open-source proxy tool PySoxy.…

GemStuffer Abuses 150+ RubyGems to Exfiltrate Scraped U.K. Council Portal Data

Cybersecurity researchers are calling attention to a new campaign dubbed GemStuffer that has targeted the RubyGems repository with more than 150 gems that use the registry as a data exfiltration channel rather than for malware distribution. “The packages do not appear designed for mass developer compromise,” Socket said. “Many have little or no download activity,…

Google entdeckt erstmals KI-basierten Zero-Day-Exploit

Willkommen im neuen, KI-geschwängerten Bedrohungszeitalter. Gorodenkoff / Shutterstock Die Google Threat Intelligence Group (GTIG) warnt davor, dass kriminelle Hacker mittlerweile KI einsetzen – sowohl, um Schwachstellen aufzuspüren, als auch um anschließend Malware zu entwickeln, die diese aktiv ausnutzt. Der Anlass: Im Rahmen der eingehenden Analyse einer Angriffskampagne prorussischer Hacker haben die Sicherheitsexperten nach eigenen Angaben…

New SOC-Ready Reporting for Faster Triage, Escalation, and Incident Response with ANY.RUN 

Successful SOC operations require more than accurate detections. Instant access to context, clear conclusions, and operationally relevant insights allow incidents to move across workflows without delays:  During alert triage, analysts need a quick threat overview to decide on the next steps.  Efficient incident response decisions demand clear, actionable context to rely on.  Swift incident reporting requires cross-tier visibility without the need for manual processing of raw technical data.  Making ANY.RUN’s Interactive Sandbox a part of your…

Patch Tuesday, May 2026 Edition

Artificial intelligence platforms may be just as susceptible to social engineering as human beings, but they are proving remarkably good at finding security vulnerabilities in human-made computer code. That reality is on full display this month with some of the more widely-used software makers — including Apple, Google, Microsoft, Mozilla and Oracle — fixing near…

‘Mini Shai-Hulud’ malware compromises hundreds of open-source packages in sprawling supply-chain attack

A rapidly spreading malware campaign has infected hundreds of software packages across major open-source registries, embedding credential-stealing code into development tools downloaded millions of times a week. The attack, referred to as “mini Shai-Hulud,” targeted prominent software libraries, including TanStack, UiPath, and MistralAI. TanStack’s React Router package alone accounts for more than 12 million weekly…

Mistral AI SDK, TanStack Router hit in npm software supply chain attack

The TeamPCP threat group has pulled off another big supply chain attack which within a few hours this week was able to successfully compromise 170 Node Package Manager (npm) and PyPI packages. The attack affected the entire TanStack Router ecosystem (@tanstack) of 42 packages, a routing library hugely popular among React web application developers. Multiple…

What works against Mythos today is what worked against ransomware 5 years ago, and malware 10-15 years ago

Mythos completely changed the game, except, in most ways, it didn’t. It isn’t creating entirely new security problems, it simply makes existing problems much easier to exploit at scale. Yes, AI will increase breaches by making attacks faster and cheaper, but the way companies defend themselves hasn’t fundamentally changed. The organizations best prepared for AI-driven…

ThreatDown ITDR prevents credential-based attacks

ThreatDown, the former corporate business unit of Malwarebytes, launched ThreatDown Identity Threat Detection and Response (ITDR). ITDR is a new product that helps security teams monitor identities to detect suspicious activity, misconfigurations, and active attacks targeting user accounts and privileges. With native integrations for Microsoft Entra ID, Okta, and Active Directory, security teams gain unified…

OpenAI introduces Daybreak cyber platform, takes on Anthropic Mythos

OpenAI has unveiled Daybreak, its answer to Anthropic’s Claude Mythos, amid a growing market for frontier AI-powered cyber defense platforms. The initiative combines OpenAI’s large language models, Codex’s agentic capabilities, and integrations with the broader enterprise security ecosystem. The company said Daybreak is focused on accelerating cyber defense operations and enabling organizations to secure software…

OpenAI introduces Daybreak cyber platform, takes on Anthropic Mythos

OpenAI has unveiled Daybreak, its answer to Anthropic’s Claude Mythos, amid a growing market for frontier AI-powered cyber defense platforms. The initiative combines OpenAI’s large language models, Codex’s agentic capabilities, and integrations with the broader enterprise security ecosystem. The company said Daybreak is focused on accelerating cyber defense operations and enabling organizations to secure software…

ThreatDown Expands Into Identity Security With ITDR Platform

ThreatDown on Tuesday announced the launch of its new Identity Threat Detection and Response (ITDR) platform, designed to help organizations detect and respond to attacks targeting user identities and credentials after authentication. The California-based cybersecurity vendor said the product is built to monitor suspicious identity activity across hybrid environments, including Microsoft Entra ID, Okta, and…

Attackers exploit cPanel CVE-2026-41940 to deploy Filemanager Backdoor

Attackers are exploiting cPanel flaw CVE-2026-41940 to install the Filemanager backdoor and gain unauthorized admin access. Cybercriminals are actively exploiting the critical cPanel vulnerability CVE-2026-41940 (CVSS score of 9.3) to deploy a backdoor called Filemanager on compromised servers. cPanel is a widely used web hosting control panel that lets users manage websites and servers through a…

Fake Claude Code takes the IElevator to your browser secrets

Developers looking for Anthropic’s increasingly popular Claude Code tool are now being lured into downloading malware. According to researchers at Ontinue, attackers are abusing a fake Claude Code installer to deliver a previously undocumented PowerShell payload. The malware is designed to evade detection, recover browser encryption material, and steal sensitive data from developer systems. “Developers…

ANY.RUN & Elastic Security: Bring Threat Intelligence into Detection and Investigation Workflows      

Security teams don’t lack data. They lack timely, usable intelligence. Analysts spend too much time validating indicators, switching between tools, and figuring out what actually matters. This introduces delays and puts organizations at risk of a missed incident.   ANY.RUN solves this by bringing real-time, behavior-validated threat intelligence from ANY.RUN integrated into Elastic Security, where SOC and MSSP teams detect emerging cyberattacks earlier and respond faster without…

Developer workstations are the new beachhead

I spent the first week of April reading three separate threat intelligence reports that, on the surface, had nothing in common. One covered a North Korean campaign that had published over 1,700 malicious packages across five open-source ecosystems. Another detailed a malware operation using a Zig-compiled binary to silently infect every IDE on a developer’s…

WannaCry, the ransomware attack that changed the history of cybersecurity

WannaCry showed how unpatched flaws and leaked cyber tools can cripple global systems, reshaping cybersecurity defenses worldwide. In memory of the day the digital world was shaken, but learned to fight back. The WannaCry ransomware attack represents one of the most significant events in recent cybersecurity history, not only for its global scale but also…

Android banking Trojan TrickMo evolves using TON network for C2

ThreatFabric found a new TrickMo Android trojan focused on stealth and persistence, moving its command-and-control traffic to the TON network. Security researchers at ThreatFabric have recently identified a new version of TrickMo, a dangerous Android banking trojan that shows how malware operators are focusing less on flashy new features and more on improving stealth, flexibility,…

CVE-2026-43500 and CVE-2026-43284: Dirty Frag Linux Privilege Escalation Flaw Raises Post-Compromise Risk

Linux local privilege escalation bugs remain especially dangerous when they turn a limited foothold into full root access. The CVE-2026-43500 vulnerability is the RxRPC half of the Dirty Frag exploit chain, which Microsoft says is already linked to limited in-the-wild post-compromise abuse, while Qualys describes it as a page-cache write issue that can let an…

Poor security left hackers inside water company network for nearly two years

The UK’s data protection regulator, the Information Commissioner’s Office (ICO), fined South Staffordshire Water’s parent company £963,900 over security failures linked to a cyberattack that exposed the personal data of 633,887 people. According to the ICO, the South Staffordshire breach began in September 2020 with a phishing email that tricked an employee into opening a…

Google warns artificial intelligence is accelerating cyberattacks and zero-day exploits

Google says hackers now use AI to create exploits, automate attacks, evade defenses, and target AI supply chains at scale. Artificial intelligence is rapidly changing the cyber threat landscape, and a new report from the Google Cloud Threat Intelligence team highlights how attackers already use AI to improve vulnerability exploitation and gain initial access to…

Google discovers weaponized zero-day exploits created with AI

The Google Threat Intelligence Group (GTIG) today released evidence of a zero-day exploit developed by a cybercriminal group with the help of AI. It marks the first time the security research group has identified what it believes to be an AI-crafted zero-day exploit in the wild. While evidence of threat actors using AI models for…

Malicious Hugging Face model masquerading as OpenAI release hits 244K downloads

A malicious Hugging Face repository posing as an OpenAI release delivered infostealer malware to Windows systems and logged 244,000 downloads before being removed, raising fresh concerns about how enterprises source and validate AI models from public repositories. The repository, named Open-OSS/privacy-filter, impersonated OpenAI’s legitimate Privacy Filter release, copied its model card almost word-for-word, and included…

The missing cybersecurity leader in small business

The average cyberattack costs for a small- or medium-size business is more than $250,000. The salary for a chief information security officer (CISO) is about the same, pulling in between $250,000 and $400,000, according to the annual 2026 CISO Report from Sophos and Cybersecurity Ventures. Small- and medium-size businesses (SMBs) know they cannot afford the…

AI security is repeating endpoint security’s biggest mistake

The security industry is experiencing déjà vu, and most teams haven’t recognized it yet. If you were in the trenches during the early 2000s, you remember the antivirus arms race. IT teams buried under signature updates. Configuration baselines checked obsessively. Patch cycles treated as the primary defense. Meanwhile, attackers pivoted. They wrote malware that matched…

AI Agents Are Creating a New Cybersecurity Blind Spot

The cybersecurity industry has spent years focusing on visibility. Dashboards expanded. Detection tooling improved. Telemetry volumes exploded. Yet one of the biggest emerging risks in 2026 is not hidden malware or an unknown zero-day. It is the rapid deployment of AI agents that organisations barely understand, cannot fully inventory, and often cannot meaningfully govern. AI…

Official JDownloader site served malware to Windows and Linux users between May 6 and May 7

JDownloader website was hacked to distribute malicious Windows and Linux installers carrying a Python RAT between May 6–7, 2026. JDownloader official website was compromised in a supply chain attack that replaced legitimate Windows and Linux installers with malicious files between May 6 and May 7, 2026. JDownloader is a free, open-source download management application designed…

SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 96

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter CloudZ RAT potentially steals OTP messages using Pheno plugin   Backdoored PyTorch Lightning package drops credential stealer A rigged game: ScarCruft compromises gaming platform in a supply-chain attack Muddying the Tracks: The State-Sponsored Shadow Behind…

Security Affairs newsletter Round 576 by Pierluigi Paganini – INTERNATIONAL EDITION

A new round of the weekly Security Affairs newsletter has arrived! Every week, the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. Quasar Linux RAT (QLNX): A Fileless Linux Implant Built for Stealth and Persistence Braintrust security incident…

Quasar Linux RAT (QLNX): A Fileless Linux Implant Built for Stealth and Persistence

Researchers uncovered QLNX, a Linux RAT targeting developers to steal credentials, log keystrokes, monitor systems, and enable remote access. Security researchers discovered a previously undocumented Linux malware called Quasar Linux RAT (QLNX) that targets developers and DevOps environments. The malicious code can steal credentials, log keystrokes, manipulate files, monitor clipboard activity, and create network tunnels…

TCLBANKER Banking Trojan Targets Financial Platforms via WhatsApp and Outlook Worms

Threat hunters have flagged a previously undocumented Brazilian banking trojan dubbed TCLBANKER that’s capable of targeting 59 banking, fintech, and cryptocurrency platforms. The activity is being tracked by Elastic Security Labs under the moniker REF3076. The malware family is assessed to be a major update of the Maverick, which is known to leverage a worm…

Apple vs. social engineering: Terminal paste trap blocked

Echoing concerns from other security experts, Orange Cyberdefense (OC) recently warned that employees have become the biggest security threat faced by business.  Now, in the latest illustration of its ongoing security response, Apple is putting new protections in place in macOS 26.4 that should help – but employee education remains critical as hackers turn to complex, multi-stage, social engineering…

Your CTEM program is probably ignoring MCP. Here’s how to fix it

Model Context Protocol (MCP) is the connective tissue of modern AI tooling and has quietly become one of the most significant blind spots in modern security programs. Like shadow IT before it, shadow AI — especially as it relates to MCP risk — introduces a new class of exposures that security teams lack adequate tooling…

Nation-state actors exploit Palo Alto PAN-OS zero-day for weeks

Palo Alto says hackers exploited PAN-OS zero-day CVE-2026-0300 for weeks, gaining root access to exposed firewalls and hiding traces. Palo Alto Networks warned that suspected state-sponsored hackers have been exploiting the critical PAN-OS zero-day CVE-2026-0300 for nearly a month. After exploiting the flaw, attackers deployed tunneling tools such as EarthWorm and ReverseSocks5, used stolen credentials…

Inside the World of Laptop Farms: How They Help Foreign Remote Workers Look U.S.-Based to Earn More Money

The expansion of remote work fundamentally altered enterprise security models. Organizations that once relied on tightly controlled office environments suddenly began shipping pre-configured corporate laptops to workers they would never physically meet. VPN enrollment, SaaS identity platforms, remote onboarding systems, and cloud collaboration tools rapidly became the new trust perimeter. Criminal organizations and state-sponsored operators…