Apollo says July cyberattack exposed Social Security numbers and personal data

Apollo Global Management said hackers breached its systems in July and accessed personal information in a social-engineering incident.

The attackers manipulated people into sharing information and used it to access data stored in Apollo’s cloud, according to a letter from human resources chief Matthew Breitfelder posted on the California attorney general’s website.

The incident occurred between July 6 and July 10. The exposed data included names, birth dates, contact information, Social Security numbers and addresses. Apollo declined to comment.

Breitfelder said the company had no evidence that the information had been publicly posted or used for identity theft or fraud. He said the investigation was ongoing and that affected people could receive further updates.

The breach follows attempted or successful cyberattacks targeting major hedge funds and private-equity firms, including Point72 Asset Management, Millennium Management, Two Sigma Investments and Citadel.