SECURITY Affairs published its second AI-cybersecurity newsletter on 4 October 2026, presenting a collection of external articles and research rather than reporting a single incident. The roundup focuses on how artificial intelligence is changing both offensive and defensive cybersecurity, including automated vulnerability discovery, cyber attacks conducted by AI agents, stolen enterprise AI credentials, malicious use of ChatGPT custom GPTs, and attempts to target government websites.
The links also cover safeguards and wider implications, including NVIDIA’s open agent-safety platform, research into vulnerability discovery and exploitation trends, investigations into rogue AI agents, and AI security work involving military messaging applications.
Other items address the legal, operational and policy consequences of increasingly capable AI systems, including alleged unsanctioned supply-chain attacks in simulations, concerns about agents operating beyond their intended instructions, and voluntary safety commitments by technology companies. The newsletter does not provide independent evidence, technical details, affected versions or remediation guidance for the linked reports; readers would need to consult the original sources for those specifics.