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A previously undocumented threat actor dubbed GREYVIBE has been attributed to ongoing and persistent attacks targeting Ukraine and Ukraine-related entities since at least August 2025. GREYVIBE, per WithSecure, is assessed to be a Russian-speaking group operating broadly in the Russian time zone, with the activities aligning with Kremlin state interests, specifically when it comes to

A newly discovered local privilege escalation vulnerability dubbed ‘CIFSwitch’ in the Linux kernel could allow attackers to forge CIFS authentication key descriptions, abuse the kernel’s key request mechanism, and gain root privileges. […]

Threat actors are abusing ChatGPT’s content-sharing feature to display fake OpenAI outage pages that direct users to download malware disguised as the ChatGPT desktop application. […]

California Attorney General Rob Bonta filed a lawsuit against 23andMe, now Chrome Holding Co., over the company’s failure to protect sensitive customer genetic and personal information. […]

Shadow AI used to mean employees pasting things they shouldn’t into ChatGPT. It now means something bigger: employees building full applications with AI, wiring them into production systems, and publishing them on the open internet. Without Security or IT in the loop. The artifact moved from a prompt to a product. The risk surface moved

Cybersecurity researchers have discovered a malicious NuGet package that masquerades as a C# software development kit for Sicoob, one of Brazil’s largest cooperative financial systems, to siphon client IDs and PFX certificates. According to Socket, versions 2.0.0 through 2.0.4 of “Sicoob.Sdk” contain functionality to exfiltrate sensitive information, including PFX certificates that are used to

DDoS attacks are increasingly being sold like subscription services, complete with pricing tiers, support, and reseller programs. Flare explores how the DDoS-as-a-Service market has evolved from scattered tools into polished attack platforms. […]

Dutch authorities have taken offline a massive botnet of 17 million devices and seized more than 200 servers at a local provider that supported the operation. […]

The North Korean state-sponsored threat actor known as Kimsuky (aka Velvet Chollima) has been attributed to a fresh set of cyber attacks targeting South Korean military and corporate entities through March and April 2026. “Kimsuky employed a range of tailored social engineering tactics, such as spoofing security software installation pages and crafting a fake Webex

Google says the Chrome Device Bound Session Credentials (DBSC) security feature is now generally available and is rolling out to all users to prevent account takeovers. […]