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AI agent security

AI agent security is the practice of protecting autonomous AI systems that use tools and take actions from hijacking, prompt injection, data theft and misuse, through controls such as permission limits, sandboxing, monitoring and input validation.

TYPE: Topic
SIGNALS: 14
FIRST SEEN: Oct 8, 2026
LAST SEEN: Oct 29, 2026

Recent signals

Cisco Open Sources Quarry to Catch AI Agent Attacks Hidden in Harmless Steps Oct 29, 2026
Imposter abused trust in OpenAI, Anthropic, and 30 others to hunt for secrets Oct 29, 2026
‘Context Bombs’ Cut AI Attack Success by Misleading Agents With Fake Targets Oct 21, 2026
Symantec Uncovers AI Agent Hijacking Models for Autonomous Cyber-Attacks Oct 21, 2026
ServiceNow and Nvidia launch Arc, a personal, long-running enterprise AI agent for productivity tasks across email and Teams, for RTX Spark and Nvidia OpenShell (Radhika Rajkumar/ZDNET) Oct 21, 2026
Asymptote Labs Lands $5.5 Million Seed for AI Agent Runtime Security Oct 21, 2026
Nvidia launches its OpenShell Reference Architecture, a framework to secure and monitor AI agents, partnering with Canonical, AWS, Google, Microsoft, and others (Thomas Claburn/The Register) Oct 21, 2026
Microsoft debuts new security tools in Microsoft 365 E7 and its Project Perception system that treat AI agents as potential insider threats via risk assessments (Todd Bishop/GeekWire) Oct 19, 2026
India becomes the latest country to report rogue AI agent activity Oct 16, 2026
Nearly Half of Organisations Report Unauthorised AI Agent Actions, Research Finds Oct 14, 2026
Rein Security, which develops runtime tools to secure enterprise AI agents and stop adversarial AI agents, raised a $25M Series A, taking total funding to $35M (Meir Orbach/CTech) Oct 11, 2026
The Third-Party Agent Problem: Why Security Built for AI You Chose Misses the Agents You Didn't Oct 10, 2026
The AI Velocity Paradox: Why Security Is Decades Behind AI Ambition Oct 9, 2026
Rein Security Raises $25 Million to Guard AI Agents at Runtime Oct 8, 2026