Security News

Over 1,000 Exposed ComfyUI Instances Targeted in Cryptomining Botnet Campaign

An active campaign has been observed targeting internet-exposed instances running ComfyUI, a popular stable diffusion platform, to enlist them into a cryptocurrency mining and proxy botnet. "A purpose-built Python scanner continuously sweeps major cloud IP ranges for vulnerable targets, automatically installing malicious nodes via ComfyUI-Manager if no exploitable node is already

[Webinar] How to Close Identity Gaps in 2026 Before AI Exploits Enterprise Risk

In the rapid evolution of the 2026 threat landscape, a frustrating paradox has emerged for CISOs and security leaders: Identity programs are maturing, yet the risk is actually increasing. According to new research from the Ponemon Institute, hundreds of applications within the typical enterprise remain disconnected from centralized identity systems. These "dark

The Hidden Cost of Recurring Credential Incidents

When talking about credential security, the focus usually lands on breach prevention. This makes sense when IBM’s 2025 Cost of a Data Breach Report puts the average cost of a breach at $4.4 million. Avoiding even one major incident is enough to justify most security investments, but that headline figure obscures the more persistent problems caused by recurring credential

New GPUBreach Attack Enables Full CPU Privilege Escalation via GDDR6 Bit-Flips

New academic research has identified multiple RowHammer attacks against high-performance graphics processing units (GPUs) that could be exploited to escalate privileges and, in some cases, even take full control of a host. The efforts have been codenamed GPUBreach, GDDRHammer, and GeForge. GPUBreach goes a step further than GPUHammer, demonstrating for the first time that

China-Linked Storm-1175 Exploits Zero-Days to Rapidly Deploy Medusa Ransomware

A China-based threat actor known for deploying Medusa ransomware has been linked to the weaponization of a combination of zero-day and N-day vulnerabilities to orchestrate "high-velocity" attacks and break into susceptible internet-facing systems. "The threat actor's high operational tempo and proficiency in identifying exposed perimeter assets have proven successful, with recent

Flowise AI Agent Builder Under Active CVSS 10.0 RCE Exploitation; 12,000+ Instances Exposed

Threat actors are exploiting a maximum-severity security flaw in Flowise, an open-source artificial intelligence (AI) platform, according to new findings from VulnCheck. The vulnerability in question is CVE-2025-59528 (CVSS score: 10.0), a code injection vulnerability that could result in remote code execution. "The CustomMCP node allows users to input configuration settings for connecting

ISC Stormcast For Tuesday, April 7th, 2026 https://isc.sans.edu/podcastdetail/9882, (Tue, Apr 7th)

AI-Assisted Supply Chain Attack Targets GitHub

PRT-scan is the second in recent months where a threat actor appears to have leveraged AI for automated targeting of a widespread GitHub misconfiguration.

Axios Attack Shows Social Complex Engineering Is Industrialized

The attack on the popular NPM package Axios is just one of many targeting maintainers and has shone a light on how threat actors can scale sophisticated social engineering campaigns.

Fortinet Issues Emergency Patch for FortiClient Zero-Day

The authentication bypass flaw, tracked as CVE-2026-35616, is the latest in a series of Fortinet vulnerabilities that have been exploited in the wild.

Iran-Linked Password-Spraying Campaign Targets 300+ Israeli Microsoft 365 Organizations

An Iran-nexus threat actor is suspected to be behind a password-spraying campaign targeting Microsoft 365 environments in Israel and the U.A.E. amid ongoing conflict in the Middle East. The activity, assessed to be ongoing, was carried out in three distinct attack waves that took place on March 3, March 13, and March 23, 2026, per Check Point. "The campaign is primarily

DPRK-Linked Hackers Use GitHub as C2 in Multi-Stage Attacks Targeting South Korea

Threat actors likely associated with the Democratic People's Republic of Korea (DPRK) have been observed using GitHub as command-and-control (C2) infrastructure in multi-stage attacks targeting organizations in South Korea. The attack chain, per Fortinet FortiGuard Labs, involves obfuscated Windows shortcut (LNK) files acting as the starting point to drop a decoy PDF

Automated Credential Harvesting Campaign Exploits React2Shell Flaw

An emerging threat cluster tracked as UAT-10608 is exploiting vulnerable Web-exposed Next.js apps and using an automated tool to exfiltrate credentials, secrets, and other system data.

Shadow AI in Healthcare is Here to Stay

Medical professionals are not going to stop using AI tools to manage growing workloads. Organizations should prioritize bolstering security protocols to limit their blast radius.

OWASP GenAI Security Project Gets Update, New Tools Matrix

In recognition of 21 generative AI risks, the standards groups recommends that companies take separate but linked approaches to defending GenAI and agentic AI systems.

Multi-OS Cyberattacks: How SOCs Close a Critical Risk in 3 Steps

Your attack surface no longer lives on one operating system, and neither do the campaigns targeting it. In enterprise environments, attackers move across Windows endpoints, executive MacBooks, Linux infrastructure, and mobile devices, taking advantage of the fact that many SOC workflows are still fragmented by platform.  For security leaders, this creates a

⚡ Weekly Recap: Axios Hack, Chrome 0-Day, Fortinet Exploits, Paragon Spyware and More

This week had real hits. The key software got tampered with. Active bugs showed up in the tools people use every day. Some attacks didn’t even need much effort because the path was already there. One weak spot now spreads wider than before. What starts small can reach a lot of systems fast. New bugs, faster use, less time to react. That’s this week. Read&

How LiteLLM Turned Developer Machines Into Credential Vaults for Attackers

The most active piece of enterprise infrastructure in the company is the developer workstation. That laptop is where credentials are created, tested, cached, copied, and reused across services, bots, build tools, and now local AI agents. In March 2026, the TeamPCP threat actor proved just how valuable developer machines are. Their supply chain attack on

Qilin and Warlock Ransomware Use Vulnerable Drivers to Disable 300+ EDR Tools

Threat actors associated with Qilin and Warlock ransomware operations have been observed using the bring your own vulnerable driver (BYOVD) technique to silence security tools running on compromised hosts, according to findings from Cisco Talos and Trend Micro. Qilin attacks analyzed by Talos have been found to deploy a malicious DLL named "msimg32.dll,"

How often are redirects used in phishing in 2026?, (Mon, Apr 6th)

In one of his recent diaries, Johannes discussed how open redirects are actively being sought out by threat actors[1], which made me wonder about how commonly these mechanisms are actually misused…