Oracle reportedly confirms Oracle Cloud breach to customers

Oracle has finally acknowledged to some customers that attackers have stolen old client credentials after breaching a "legacy environment" last used in 2017, Bloomberg reported. However, while Oracle told clients this is old legacy data that is not sensitive, the threat actor behind the attack has shared data with BleepingComputer from the end of 2024 and posted newer records from 2025 on a hacking forum. According to Bloomberg, the company also informed clients that cybersecurity firm CrowdStrike and the FBI are investigating the incident. Cybersecurity firm CybelAngel first revealed that Oracle told clients that an attacker who gained access to the company's Gen 1 (also known as Oracle Cloud Classic) servers as early as January 2025 used a 2020 Java exploit to deploy a web shell and additional malware. During the breach, detected in late February, the attacker allegedly exfiltrated data from the Oracle Identity Manager (IDM) database, including user emails, hashed passwords, and usernames. This comes after a threat actor (known as rose87168) put up for sale 6 million data records on BreachForums on March 20 and released multiple text files containing a sample database, LDAP information, and a list of the companies as proof that the data was legitimate, all of them allegedly stolen from Oracle Cloud's federated SSO login servers. ​When asked to confirm the authenticity of the leaked data, Oracle told BleepingComputer that "There has been no breach of Oracle Cloud. The publi...