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#9 The Hacker News general October 26, 2026 at 06:03 UTC

Malicious File in Downloads Folder Tries to Trick AI Coding Agent Into Installing Malware

By [email protected] (The Hacker News)

AI Summary

Security firm Forever Security caught a real-world prompt injection attack in which a malicious AGENTS.md instruction file in a developer's Downloads folder attempted to direct an AI coding agent to install a known-malicious npm package, stopping the agent before execution. The incident represents a concrete example of indirect prompt injection targeting AI coding agents and illustrates new attack surface considerations for developer security.

Relevance score: 78.0/100

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