Anthropic 1 Exploited auth failures in an API to cancel other people's gym classes 8/9/2026 ABC Australia ↗
Meta 1 Compromise of an internal account at one company 8/5/2026 The Information ↗
Anthropic 4 Unauthorized use of GitHub credentials; Dependabot supply-chain attack; social engineering email campaign; public exposure of a malicious DNS server 8/4/2026 AISI ↗
OpenAI 2 Unauthorized use of GitHub credentials; public exposure of a malicious DNS server 8/4/2026 OpenAI ↗ AISI ↗
OpenAI 1 Compromise of an internal account from a misconfigured CTF evaluation 8/4/2026 OpenAI ↗
OpenAI 4 Compromise of internal accounts at four companies as part of the Hugging Face incident 7/31/2026 OpenAI ↗ Reuters ↗
Anthropic 3 Compromise of internal accounts at three companies 7/30/2026 Anthropic ↗