# Ernst & Young Hit by Data Breach Exposing Client Tax Documents

*Published July 20, 2026*
*Source: [https://www.bleepingcomputer.com/news/security/ernst-and-young-discloses-data-breach-after-support-system-hack/](https://www.bleepingcomputer.com/news/security/ernst-and-young-discloses-data-breach-after-support-system-hack/)*

## Executive Summary

Ernst & Young suffered a data breach through a third-party support system, resulting in the exposure of sensitive client tax documents. This incident underscores the risks third-party services pose to data security, prompting the firm to strengthen its security protocols.

## Article

Ernst & Young has revealed a significant data breach involving a third-party support ticket system. Hackers gained unauthorized access to the system, allowing them to view and download sensitive client tax documents. The breach highlights the vulnerabilities associated with relying on third-party services, as attackers were able to exploit weaknesses in the support system to access confidential data. Clients affected by this breach face potential risks including identity theft and financial fraud. Ernst & Young is currently investigating the incident and is working to enhance its security measures to prevent future occurrences. The firm has also begun notifying affected clients and is providing guidance on how to protect their information.