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Meet GREYVIBE, the Russia-Linked Hacking Group Using AI to Target Ukraine and Still Making Rookie Mistakes

GREYVIBE, a Russia-linked group active since 2025, targets Ukraine with AI-assisted malware and five attack chains. Researchers say it’s part spy op, part crime gang. Security firm WithSecure has been tracking a previously unknown Russian-linked APT group called GREYVIBE since at least August 2025. The group targets Ukraine and Ukrainian-related organizations across military, government, civilian,…

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.…

Weekly Update 504

It’s a hot topic, the old “pay or don’t pay” for hackers not to leak your data. Since recording this a few days ago, we’ve had Grafana go with the “no pay” approach, and I’ve seen a raft of commentary around other companies reaching “agreements”, which is a much politer way of saying “we paid…

Phishing Campaign Hits 80+ Orgs Using SimpleHelp and ScreenConnect RMM Tools

An active phishing campaign has been observed targeting multiple vectors since at least April 2025, with legitimate Remote Monitoring and Management (RMM) software as a way to establish persistent remote access to compromised hosts. The activity, codenamed VENOMOUS#HELPER, has impacted over 80 organizations, most of which are in the U.S., according to Securonix. It shares…

Security posture improvement in the AI era

It’s only been a few weeks since Anthropic announced the Claude Mythos Preview model and launched Project Glasswing with AWS and other leading organizations. This has generated a lot of discussion about the future of cybersecurity and what the ever-increasing capabilities of foundation models mean to organizations. As AWS CISO Amy Herzog pointed out in…

Mythos Changed the Math on Vulnerability Discovery. Most Teams Aren’t Ready for the Remediation Side

Anthropic’s Claude Mythos Preview has dominated security discussions since its April 7 announcement. Early reporting describes a powerful cybersecurity-focused AI system capable of identifying vulnerabilities at scale and raising serious questions about how quickly organizations can validate, prioritize, and remediate what it finds. The debate that followed has mostly focused on the right

Former OpenAI research scientist launches new AI model for Tencent

Tencent has updated its Hunyuan AI model, its first major release since it recruited Yao Shunyu, a leading AI scientist from OpenAI. Tencent’s Hy3 model, currently available in preview, offers improvements in areas from complex reasoning to coding. The Chinese technology conglomerate is playing catch-up with other Chinese AI developers including ByteDance, Alibaba and DeepSeek.…

NGate NFC malware targets Android users through trojanized payment app

NFC-based payment fraud is expanding geographically and operationally. A campaign active since November 2025 is targeting Android users in Brazil using a new variant of the NGate malware family, this time embedded in a trojanized version of HandyPay, a legitimate NFC relay application available on Google Play since 2021. ESET Research identified the campaign and…

BlobPhish: The Phantom Phishing Campaign Hiding in Browser Memory

ANY.RUN has observed a sustained surge in a credential-phishing campaign active since 2024. This campaign, dubbed BlobPhish, introduces a sneaky twist: instead of delivering phishing pages via traditional HTTP requests, it generates them directly inside the victim’s browser using blob objects. The result is a phishing payload that lives entirely in memory, leaving little to no trace in logs, caches,…

7 biggest healthcare security threats

Cyberattacks targeting the healthcare sector have surged since the COVID-19 pandemic and the resulting rush to enable remote delivery of healthcare services. Security vendors and researchers tracking the industry have reported a major increase in phishing attacks, ransomware, web application attacks, and other threats targeting healthcare providers. Recent rising of ransomware attacks on healthcare, in…

Masjesu botnet targets IoT devices while evading high-profile networks

Masjesu is a stealthy DDoS-for-hire botnet targeting IoT devices, active since 2023 and designed to stay hidden by avoiding high-profile networks. Masjesu is a stealthy botnet active since 2023, advertised as a DDoS-for-hire service. It targets IoT devices like routers and gateways, spanning multiple architectures. Designed for persistence, it executes carefully, avoiding high-profile IP ranges…

Acrobat Reader zero-day exploited in the wild for many months

Unknown attackers have exploited a zero-day Adobe Acrobat Reader vulnerability since November 2025 and possibly even earlier, security researcher Haifei Li has discovered. PDF files carry the exploit Haifei Li is one of the creators of EXPMON, a sandbox-based cybersecurity system for detecting advanced file-based exploits. It does so by analyzing suspicious files submitted through…

China-Linked TA416 Targets European Governments with PlugX and OAuth-Based Phishing

A China-aligned threat actor has set its sights on European government and diplomatic organizations since mid-2025, following a two-year period of minimal targeting in the region. The campaign has been attributed to TA416, a cluster of activity that overlaps with DarkPeony, RedDelta, Red Lich, SmugX, UNC6384, and Vertigo Panda. “This TA416 activity included multiple

TeamPCP’s attack spree slows, but threat escalates with ransomware pivot

TeamPCP’s destructive run of supply chain breaches has stopped, for now: it has been three days since the group published malicious versions of Telnyx’s SDK on PyPI, and there haven’t been reports of new open-source project compromises. Partnership with emerging RaaS operation “The prior operational cadence was aggressive – a new target every 1-3 days…

CISO Spotlight: Dimitris Georgiou on Building Security that Serves People First

Dimitris Georgiou has been a self-professed computer geek since the early 80s. At university, he studied the convergence of educational technology with computer science as part of his psychology MA – finding, to his disbelief, that systems were perilously insecure.  Since then, he’s always worked in and around cybersecurity. He’s had roles as a computer…

Tax Search Ads Deliver ScreenConnect Malware Using Huawei Driver to Disable EDR

A large-scale malvertising campaign active since January 2026 has been observed targeting U.S.-based individuals searching for tax-related documents to serve rogue installers for ConnectWise ScreenConnect that drop a tool named HwAudKiller to blind security programs using the bring your own vulnerable driver (BYOVD) technique. “The campaign abuses Google Ads to serve rogue ScreenConnect (

“It is not the customer’s job to know what they want” rings true in cyber

Ever since I embarked on the founder journey and started working on my own startup, I’ve developed different perspectives and some strong opinions about founder life. In today’s issue, I am going to share one of them – about the fact that there has never been a billion-dollar security company built based on Gartner’s* insight…

7,500+ Magento sites defaced in global hacking campaign

Hackers defaced 7,500 Magento sites since Feb 27, uploading files across 15,000 hostnames, mostly opportunistic attacks. Since February 27, a large-scale campaign has defaced over 7,500 Magento sites, targeting e-commerce platforms, global brands, and government services. According to cybersecurity firm Netcraft, attackers placed plaintext defacement files across more than 15,000 hostnames, directly compromising affected infrastructure.…

DarkSword: Researchers uncover another iOS exploit kit

A powerful iPhone hacking toolkit dubbed “DarkSword” has been used since November 2025 to compromise devices by exploiting zero-day iOS vulnerabilities, Google researchers have shared. iOS vulnerabilities exploited by DarkSword Two weeks ago, Google Threat Intelligence Group (GTIG) and iVerify disclosed the existence of Coruna, a spy-grade iOS exploit kit that has been used in…

Interlock group exploiting the CISCO FMC flaw CVE-2026-20131 36 days before disclosure

The Interlock ransomware group has exploited a Cisco FMC zero-day RCE vulnerability in attacks since late January. The Interlock ransomware group has been exploiting a critical zero-day RCE vulnerability, tracked as CVE-2026-20131 (CVSS score of 10.0), in Cisco Secure Firewall Management Center (FMC) since late January. The vulnerability is a remote code execution flaw that…

CL-STA-1087 targets military capabilities since 2020

China-linked APT group CL-STA-1087 has targeted Southeast Asian militaries since 2020 using AppleChris and MemFun. A suspected China-linked espionage campaign, tracked as CL-STA-1087, has targeted Southeast Asian military organizations since at least 2020, using AppleChris and MemFun malware. “The activity demonstrated strategic operational patience and a focus on highly targeted intelligence collection, rather than bulk…

Iran-linked APT targets US critical sectors with new backdoors

An Iran-linked hacking group has been active inside the networks of several US organizations since early February, raising concerns that the activity could precede broader cyber operations connected to escalating geopolitical tensions in the Middle East. New backdoors used by Seedworm Symantec and Carbon Black researchers have attributed the activity to Seedworm (aka MuddyWater), an…

Facebook is experiencing a global outage

Facebook is experiencing a global outage since 4:15 PM ET, with users reporting they cannot access their accounts. Facebook users worldwide report problems while attempting to access their accounts. The outage started around 4:15 PM ET. Upon attempting to access their account, users are presented the following message: “Account Temporarily Unavailable. Your account is currently unavailable due…

UAC-0252 Attack Detection: SHADOWSNIFF and SALATSTEALER Fuel Phishing Campaigns in Ukraine

Since January 2026, CERT-UA has been tracking a series of intrusions attributed to UAC-0252 and built around SHADOWSNIFF and SALATSTEALER infostealers. The campaigns rely on well-crafted phishing lures, payload staging on legitimate infrastructure, and user-driven execution of disguised EXE files. Detect UAC-0252 Attacks Covered in CERT-UA#20032 According to the Phishing Trends Q2 2025 research by…

Cisco SD-WAN Zero-Day Actively Exploited to Gain Root Access

A zero-day vulnerability in Cisco Catalyst SD-WAN products has been actively exploited since at least 2023, allowing attackers to bypass authentication and ultimately gain root access in targeted environments.  This flaw affects core control-plane components and has been linked to a sophisticated threat actor cluster known as UAT-8616. “The Cisco Catalyst SD-WAN zero-day, which is…

Hackers abused Cisco SD-WAN zero-day since 2023 to gain full admin control

Cisco SD-WAN vulnerability CVE-2026-20127 has been exploited since 2023 to gain unauthenticated admin access. A critical Cisco SD-WAN vulnerability, tracked as CVE-2026-20127 (CVSS score of 10.0), has been actively exploited since 2023. The flaw affects Catalyst SD-WAN Controller and Manager and allows remote, unauthenticated attackers to bypass authentication and gain full administrative access by sending…

The rise of the evasive adversary

Since the earliest days of the internet, there has never been a let-up in adversarial activity. According to CrowdStrike’s just-released 12th annual Global Threat Report, malicious activity in cyberspace continues to not only accelerate but also expand its scale and increasingly abuse the trust of targeted organizations. The good news is that, despite discussion of…

DKnife toolkit abuses routers to spy and deliver malware since 2019

DKnife is a Linux toolkit used since 2019 to hijack router traffic and deliver malware in cyber-espionage attacks. Cisco Talos found DKnife, a powerful Linux toolkit that threat actors use to spy on and control network traffic through routers and edge devices. It inspects and alters data in transit and installs malware on PCs, phones,…

What Is The Difference Between Hack And Virus?

This post will show you the difference between a hack and a virus. Since the inception of the internet era, most non-tech computer users have often used ‘hack’ and ‘virus’ interchangeably. This is understandable because a thin line exists between ‘hack’ and ‘virus.’ There are fundamental differences to note about hacking and viruses to equip…