SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 111

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter Akira Hits Safe Mode: Ransomware Rebooting Around EDR ... Read more »

CDN Tsunami Attack Abuses HTTP/3 Translation for Up to 350x DoS Amplification

Cybersecurity researchers have disclosed two denial-of-service (DoS) attacks that exploit how major content delivery networks (CDNs) convert client-facing HTTP/3 traffic into HTTP/1.1 requests to the websites they front, amplifying... Read more »

Security Affairs newsletter Round 591 by Pierluigi Paganini – INTERNATIONAL EDITION

A new round of the weekly Security Affairs newsletter has arrived! Every week, the best security articles from Security Affairs are free in your email box. Enjoy a new... Read more »

UK Power Plant Disabled for Four Days by Iran-Linked Hackers, Concurrent with US Water Attacks

Iran-linked hackers shut down a UK power plant for four days in the first confirmed attack of its kind, concurrent with water infrastructure attacks across 12 US states. Iran-linked... Read more »

Zero-Click Grok Chat History Theft: Adversa AI Demonstrates Cryptographic Context Injection

New Cryptographic Context Injection technique bypasses AI guardrails via AES-encrypted payloads, leaking full Grok chat histories zero-click Adversa AI researcher Rony Utevsky devised a new attack technique, called Cryptographic... Read more »

New Cryptographic Context Injection Attack Could Let Web Pages Steal Grok Chat Data

Adversa AI has disclosed an attack technique that it says can cause xAI’s Grok chatbot to send a user’s name, approximate location, subscription tier, and the prompts from the... Read more »

40 Malicious Firefox Extensions Pose as Web3 Products to Steal Wallet Secrets

A set of 40 Mozilla Firefox extensions has been found to engage in cryptocurrency wallet theft by masquerading as OKX, Rabby Wallet, TronLink, and other Web3 products. According to... Read more »

Android Car Malware Spreads Through Built-In Updaters for Ad Fraud, Proxy Botnet

Cybersecurity researchers have flagged a new malware family that’s specifically designed to infect Android-based vehicle head unit firmware developed by DoFun. Kaspersky, which discovered the threat in June 2026,... Read more »

AI-Generated Exploit Scripts Target Siemens S7 PLCs in U.S. Critical Infrastructure

The U.S. government on Wednesday warned of an “active threat” targeting critical infrastructure organizations in the country using artificial intelligence (AI)-generated exploit scripts. The activity is targeting Siemens S7... Read more »

Microsoft Defender’s Own Driver Can Be Weaponized to Delete Security Software at Boot

Check Point Research has disclosed a technique that uses Microsoft Defender’s own legitimately signed boot-time remediation driver to perform arbitrary kernel-level file and registry operations on Windows systems ranging... Read more »
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