AI Security Roundup

Threat actors associated with The Gentlemen ransomware‑as‑a‑service (RaaS) operation have been observed attempting to deploy a known proxy malware called SystemBC . According to new research published …

A 24-year-old British national and senior member of the cybercrime group “ Scattered Spider ” has pleaded guilty to wire fraud conspiracy and aggravated identity theft. Tyler Robert Buchanan admitted …

** Ravie Lakshmanan ** Apr 21, 2026 Insider Threat / Cybercrime A third individual who was employed as a ransomware negotiator has pleaded guilty to conducting ransomware attacks against U.S. …

** Ravie Lakshmanan ** Apr 21, 2026 Network Security / Vulnerability Cybersecurity researchers have identified 22 new vulnerabilities in popular models of serial-to-IP converters from Lantronix and …

Security teams often present MTTR as an internal KPI. Leadership sees it differently: every hour a threat dwells inside the environment is an hour of potential data exfiltration, service disruption, …

The cybersecurity industry has spent the last several years chasing sophisticated threats like zero-days, supply chain compromises, and AI-generated exploits. However, the most reliable entry point …

** Ravie Lakshmanan ** Apr 21, 2026 Mobile Security / Artificial Intelligence Cybersecurity researchers have discovered a new iteration of an Android malware family called NGate that has been found to …

Mexican Surveillance Company Grupo Seguritech is a Mexican surveillance company that is expanding into the US. Tags: Mexico , privacy , surveillance Posted on April 21, 2026 at 7:04 AM • 1 Comments

** Ravie Lakshmanan ** Apr 21, 2026 Vulnerability / Artificial Intelligence Cybersecurity researchers have discovered a vulnerability in Google’s agentic integrated development environment …

There have been reports of threat actors using a .wav file as a vector for malware . It’s a proper .wav file, but they didn’t use staganography. The .wav file will play, but you’ll …

** Ravie Lakshmanan ** Apr 21, 2026 Network Security / Threat Intelligence The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday added eight new vulnerabilities to its Known …

ISC Stormcast For Tuesday, April 21st, 2026 https://isc.sans.edu/podcastdetail/9900

** Ravie Lakshmanan ** Apr 20, 2026 Open Source / Server Security A critical security vulnerability has been disclosed in SGLang that, if successfully exploited, could result in remote code execution …

** Ravie Lakshmanan ** Apr 20, 2026 Cybersecurity / Hacking Monday’s recap shows the same pattern in different places. A third-party tool becomes a way in, then leads to internal access. A trusted …

The fastest way to fall in love with an AI tool is to watch the demo. Everything moves quickly. Prompts land cleanly. The system produces impressive outputs in seconds. It feels like the beginning of …

Is “Satoshi Nakamoto” Really Adam Back? The New York Times has a long article where the author lays out an impressive array of circumstantial evidence that the inventor of Bitcoin is the cypherpunk …

** Ravie Lakshmanan ** Apr 20, 2026 Artificial Intelligence / Vulnerability Cybersecurity researchers have discovered a critical “by design” weakness in the Model Context Protocol’s …

Cybersecurity researchers have flagged a new malware called ZionSiphon that appears to be specifically designed to target Israeli water treatment and desalination systems. The malware has been …

Every morning, security people around the world face the same ritual: opening their vulnerability feed to find a lot of new CVE entries that appeared overnight. Over the past decade, this flood has …

** Ravie Lakshmanan ** Apr 20, 2026 Cloud Security / Data Breach Web infrastructure provider Vercel has disclosed a security breach that allows bad actors to gain unauthorized access to …

ISC Stormcast For Monday, April 20th, 2026 https://isc.sans.edu/podcastdetail/9898

** Ravie Lakshmanan ** Apr 18, 2026 Money Laundering / Regulatory Compliance Grinex, a Kyrgyzstan-incorporated cryptocurrency exchange sanctioned by the U.K. and the U.S. last year, said it’s …

Threat actors are exploiting security flaws in TBK DVR and end‑of‑life (EoL) TP-Link Wi-Fi routers to deploy Mirai -botnet variants on compromised devices, according to findings from Fortinet …

Friday Squid Blogging: New Giant Squid Video Pretty fantastic video from Japan of a giant squid eating another squid. As usual, you can also use this squid post to talk about the security stories in …

** Ravie Lakshmanan ** Apr 17, 2026 Vulnerability / Endpoint Security Huntress is warning that threat actors are exploiting three recently disclosed security flaws in Microsoft Defender to gain …