Sony Sued Anthropic. Re-Prompting Voids Your Indemnity.
Sony Music Publishing and Warner Chappell allege Claude's lyric guardrails are defeated by re-prompting. That exact behaviour trips a condition in every major AI copyright indemnity — Microsoft's, Google's, OpenAI's and Anthropic's own — by four different routes.
August 30, 2026 · 15 min read