EY Data Breach Exposes Goldman Sachs and Man Group Clients’ Tax and Financial Data

EY disclosed that an unauthorized third party accessed and downloaded client documents from a tax support platform between March 28 and April 12, 2026, potentially exposing personally identifiable and financial information for clients of Goldman Sachs Wealth Management, Man Group and others; EY engaged an independent security firm for investigation, notified regulators and affected parties, and the incident was claimed by the ShinyHunters group though technical exploit details and full scope remain unconfirmed.