Bottom line: Anthropic's Claude users were compromised due to infostealer attacks.
What's happening: Anthropic, a leading AI research organization, locked out 1,000+ Claude users after their login sessions were hijacked by infostealers. The attacks targeted users in the United States, United Kingdom, and Australia. The incident occurred on October 12, 2022, when a new infostealer variant emerged.
What to do: Security leaders should ensure that their users are using two-factor authentication (2FA) and keep their systems and software up to date, including the latest security patches. Anthropic also recommends that users update their passwords and enable account alerts.