Cases · Developer or organisation: Anthropic · How the AI agent failed: hijacked by hidden instructions · Model: Claude
| What happened | What went wrong | Severity | Earliest source |
|---|---|---|---|
| Claude in Chrome indirect prompt injection chain: inbox exfiltration, Drive persistence and account takeover Anthropicminor · earliest source 2026-08-05 | security breach | minor | 2026-08-05 |
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