> Contagious Claude Code bug Anthropic ignored promptly spreads to Cowork
[AUTHOR: Brandon Vigliarolo]
[DATE: 15/01/2026 19:15]
[LANGUAGE: EN]
Office workers without AI experience warned to watch for prompt injection attacks - good luck with that Anthropic's tendency to wave off prompt-injection risks is rearing its head in the company's new Cowork productivity AI, which suffers from a Files API exfiltration attack chain first disclosed last October and acknowledged but not fixed by Anthropic.…