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March 28, 2026 Verified Sensitive Record Professional Services

EY 2026 Data Breach

The EY 2026 data breach resulted from unauthorized access to a third-party service-management platform that Ernst & Young used to support tax work performed for clients.

10.9 Thousand
Affected People
6
Data Types
Medium
Severity
Yes
Verification

Exposed Data Types

6
Names
Physical addresses
Social security numbers
Financial account numbers
Credit and debit card numbers
Tax information

Additional Information

Added DateJuly 26, 2026
Breach DateMarch 28, 2026
Domainey.com
SourceThird-party breach
Last Content UpdateJuly 27, 2026

Verification and editorial method

LeakData compares the incident name, date, affected-record count, and exposed data types with accessible sources. Unverified fields are not presented as facts, and records are updated when new evidence becomes available.

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Company Information

Company NameErnst & Young
SectorProfessional Services
CountryUnited States
Websiteey.com

Risk Level

Medium

The reported impact exceeds 10 thousand and falls within the medium severity band.

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