A fake AI agent skill passed every security scanner and reportedly reached 26,000 agents

https://media.thenextweb.com/2026/06/fake-ai-agent-skill-security-scanners-bypassed-26000-agents.avif

TL;DR

Security firm AIR got a fake skill past every major scanner and says it reached 26,000 agents by swapping an external URL after the scan cleared.

Security firm AIR built a fake AI agent skill, pushed it through a popular skill marketplace and promoted it with an Instagram ad, and says it reached roughly 26,000 agents, including some on corporate accounts. Every skill security scanner the firm tested it against marked it safe. The payload was harmless by design, collecting only the user’s email address, but AIR says a real attacker could have used the same foothold to read files, move data, or hit internal systems.

The skill, called brand-landingpage, claimed to build a landing page using Google’s Stitch design tool and was aimed at non-technical users. To make it look credible, AIR went after two trust signals that the ecosystem still treats as proof of safety: GitHub...

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