Every public data breach

44 disclosed this week · 26,355 on record

Deloitte

Disclosed Sep 25, 2017Unverified

Hackers access Deloitte email system holding confidential client data

The Guardian reported that Deloitte was hit by a cyber-attack on its email system in which hackers may have accessed usernames, passwords, confidential emails and personal details of blue-chip clients.

What is known

People affectedNot stated in the sources we have
DisclosedSep 25, 2017
AttackHacking
Data exposedEmailsCredentials and tokensInternal documentsMessages
SectorTech · GB
StatusUnverified: not yet confirmed by an official notice, a filing or the organization

Sources

Notices filed

History of this record
Added2026-09-25
First recordedby seedSource

First seen 2026-09-25 (Research). Record counts are as reported. Not legal advice.

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