Apollo data breach exposes Social Security numbers

Apollo Global Management disclosed on August 21, 2026, that it suffered a data breach in July, resulting in the compromise of highly sensitive personal information, including Social Security numbers. The private equity firm stated that attackers used social engineering techniques to gain unauthorized access to its cloud platforms between July 6 and July 10.

In a notification filed with the California attorney general, Matthew Breitfelder, Apollo's global head of human capital, confirmed the incident. He said the breach involved hackers manipulating individuals into sharing information to access the company's cloud environment. The exposed data includes names, dates of birth, contact information, home addresses, and Social Security numbers. Apollo has not specified how many people were affected or whether the records belonged to employees, investors, or personnel at portfolio companies, stating the investigation is ongoing.

Upon detecting the incident, Apollo said it promptly notified law enforcement, engaged outside cybersecurity and forensic experts, enhanced its security protocols, and launched an investigation. On August 12, the company determined that personal data had been...