Commenters focused on a malicious version of the Claude Code VS Code extension, with a security report describing an SSH key added to users’ authorized_keys. They disputed where the compromised version was distributed and who was responsible: Cursor said it was not developed by Anthropic, while commenters questioned whether Anthropic’s publishing account, Open VSX, or another part of the supply chain had been compromised. Some believed the affected release was limited to Open VSX and Cursor; others pointed to reports or screenshots involving Microsoft’s marketplace. They called for Anthropic to explain how the tampering happened, beyond providing instructions to remove it.
Many commenters treated the incident as a warning about trusting extensions and agentic coding tools with access to files and credentials. They criticized weak supply-chain defenses and automatic updates, and some recommended running agents in isolated virtual machines. Others argued that a compromised extension does not prove Claude Code or Codex is inherently unsafe, since any installed software can be attacked. Commenters also questioned claims that advanced AI tools make software development or security effectively solved. One commenter speculated that the extension attack might be connected to a Binance theft, while others focused on the risks to developer accounts and downstream software.
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