AI security
4 articles
Part of Agents & MCP
HOL Guard 2.1: 51,000 Test Cases, HMAC-Backed Reconnect, and a New Command Classification Engine
HOL Guard 2.1 ships a 51,000-case command classification corpus, HMAC-backed dashboard reconnect, signed Codex hook manifests, DNS-pinned archive downloads, and a typed GitHub capability model — all open source, canary-tested on TestPyPI.
MCP Tool Poisoning: How the AI Agent Protocol Became a Supply Chain Attack Surface
The MCP protocol connects AI agents to over 10,000 tools. It also creates a new supply chain attack surface: poisoned tool descriptions that silently hijack agent behavior. Here's the data, the CVEs, and what to do.
HOL
Prompt Injection Defense in 2026: What Works Beyond Detection
Prompt injection remains an unresolved structural risk for AI agents. This guide covers defense in depth across trust boundaries, permissions, validation, sandboxing, runtime policy, supply-chain checks, and monitoring.
HOL
Slopsquatting: When AI Hallucinations Become Supply Chain Attacks
AI coding assistants hallucinate package names 19.7% of the time. Attackers register those names on npm and PyPI before real packages can claim them. Tens of thousands of developers have already installed malicious packages their AI suggested. Here is how the attack works, what the research shows, and how to stop your team from becoming the next victim.
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