July 28, 2026
Agentic AI Muscles Into the Offensive Toolkit
PortSwigger released Burp AT, an agentic-AI testing tool, while researchers demonstrated the first fully AI-written iOS jailbreak (Relaxin) for Apple devices with SPTM protection. Microsoft launched MAI-Cyber-1-Flash, a security model scoring 96% on CyberGym benchmarks for autonomous attack/defense simulation. Multiple zero-day exploits surfaced including a pre-auth vBulletin RCE (CVE-2026-61511), an exploited Arista VeloCloud zero-day, an n8n sandbox escape, and active FastJSON2 exploitation against US firms, while Hugging Face published a CISO post-mortem of autonomous-AI intrusion revealing 17,000+ logged actions and lateral movement.