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EY data leak affects Goldman Sachs and hedge fund Man Group clients

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 07/10/2026, 09:26:25 UTC.

Briefings

A EY suffered a data breach affecting clients of Goldman Sachs and Man Group between March and April 2026, triggered by a vulnerability in Checkmar's software. Unauthorized access allowed third parties to view personal financial and tax information for over 100 clients. The EY confirmed the incident was not operational and completed an analysis by July 2026, with the breach reported to four US regulators. Goldman and Man Group confirmed their systems were secure, though the specific number of affected clients remains unspecified.

Key points

• A vulnerability in Checkmar's software allowed unauthorized third parties to access EY's client data between March and April 2026, enabling the viewing of personal financial and tax information for over 100 clients.
• Goldman Sachs and Man Group confirmed their systems were secure and that their clients were not impacted by the breach, though the specific number of affected clients remains unspecified.

Context and limitations

The evidence covers a specific period from March to July 2026. The exact number of affected clients is not specified, and the full scope of data types accessed beyond financial and tax information is limited to what was explicitly mentioned in the reports.

Generated by Bittrees-hosted qwen35-2b sha256:aaf42c8b7c3c on 07/10/2026, 09:53:21 UTC. Based on publisher-provided feed evidence; may not cover the full original article. Check the source for details.

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