Attackers Use LLM Agent for Post-Exploitation After Marimo CVE-2026-39987 Exploit
An unknown threat actor has been observed using a large language model (LLM) agent to conduct post-compromise actions…
New Russia-Linked GREYVIBE Targets Ukraine with AI-Powered Cyberattacks
A previously undocumented threat actor dubbed GREYVIBE has been attributed to ongoing and persistent attacks targeting Ukraine and…
What 2,000 Exposed Vibe-Coded Apps Reveal About the Limits of Most Security Stacks
Shadow AI used to mean employees pasting things they shouldn’t into ChatGPT. It now means something bigger: employees…
Kimsuky Deploys HTTPSpy, Expands Arsenal with HelloDoor and VS Code Tunnels
The North Korean state-sponsored threat actor known as Kimsuky (aka Velvet Chollima) has been attributed to a fresh…
Critical Gogs RCE Vulnerability Lets Any Authenticated User Execute Arbitrary Code
A critical security vulnerability has been disclosed in Gogs, a popular open-source self-hosted Git service, that allows an…
Threat Actors Exploit Critical FortiClient EMS Flaw to Deploy Credential Stealer
Threat actors are continuing to exploit a critical, now-patched security flaw impacting FortiClient Endpoint Management Server (EMS) deployments…
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…
ThreatsDay Bulletin: Claude Security Plugin, Azure Priv-Esc, Kali365 MFA Bypass, FIFA Scams +15 More
Every time you think the industry has finally stopped doing some reckless, low-effort crap, somebody spins up a…
Grandoreiro Malware and BTMOB RAT Campaigns Target Windows and Android Users
Latin America and Europe become the target of two banking trojan campaigns that are designed to infect Windows…
Malicious npm Package Stole Files From Claude AI User Directory via GitHub
Cybersecurity researchers have discovered a new malicious package on the npm registry that comes with information stealing capabilities.…