www.securityweek.com 7/20/2026, 11:40:48 AM · external

EY Warns Clients of Data Breach via Third Party Platform

EY Warns Clients of Data Breach via Third Party Platform
Developing story breach 2 articles tracked
Ernst & Young data breach via third‑party ticket system
CyberSIXT Evidence Panel
Primary Source oag.ca.gov

ERNST & Young (EY) has notified clients of a data breach involving compromised personal and financial information due to a third-party service management platform. The breach occurred between March 28 and April 12 and was identified on April 23. EY is providing affected clients with two years of free credit and identity monitoring services. While no misuse of data has been reported, details on the attack's method and perpetrator remain undisclosed. The incident highlights ongoing cybersecurity challenges faced by large organizations.

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