EY data breach puts spotlight on data security at Big Four as clients demand tighter controls
- Posted on October 9, 2026
- By Business News Today
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- 1 min read
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EY data breach puts spotlight on data security at Big Four as clients demand tighter controls
EY has reported a data breach that exposed sensitive client information and prompted regulatory notifications in multiple jurisdictions. This incident has raised concerns among top professional services firms regarding the protection of client data. Experts emphasize the need for tighter controls amid increasing cyberattacks and the complexity of technology used by these firms. Most communications between firms and clients are conducted over email, which poses additional risks.
