Cal AI, New Owner of MyFitnessPal, Hit by Alleged Breach of 3 Million Users

**Cal AI alleged data breach:** A threat actor claiming the handle “vibecodelegend” posted on BreachForums that they leaked ~12 GB of data from Cal AI (now owner of MyFitnessPal), affecting over 3 million users and containing names, dates of birth, emails (including @privaterelay.appleid.com addresses), PIN codes, subscription details, physical attributes, and meal logs; Hackread’s analysis found indications the dataset may be authentic and copies are circulating on Russian-language forums and Telegram, while Cal AI had not yet responded — users are advised to monitor for suspicious activity and change reused passwords.