AI Sec Watch: A Security Intelligence Platform for AI Systems

Luu, T.J.

AI Agent Firewall Startup AIR Security Emerges From Stealth With $50 Million

infonews

securityindustry

Source: SecurityWeekSeptember 3, 2026

Summary

AIR Security has launched a firewall designed specifically to protect AI agents (autonomous programs that can connect to tools, data, and services to act on behalf of users) from security threats. The company's research found over 17,800 public AI add-ons (software extensions) with 6.7 million installations relying on untrusted external sources, and discovered fake AI Skills impersonating companies like Anthropic and OpenAI that could execute arbitrary code (run any commands an attacker wants). The AIR firewall addresses this by discovering, evaluating, and monitoring every add-on and plugin across an organization's AI agent supply chain, screening for malicious code, hidden behaviors, and compromised packages.

Solution / Mitigation

AIR's firewall performs deep analysis of add-ons before deployment, screening for known agentic attack patterns (common ways AI agents are compromised), external instruction sources, hidden behaviors, and typo-squatted packages (fake tools mimicking real ones). If an add-on is malicious, vulnerable, or unapproved, security teams can trace every agent and workflow using it and revoke access across the organization. The firewall provides continuous monitoring, so if a maintainer pushes a malicious update or an existing integration is later compromised, trust is automatically revoked. AIR also offers a marketplace of pre-vetted, certified add-ons as a safe way to expand agent capabilities.