Professional Services Giant Ernst & Young (EY) Hacked

Ernst & Young has begun notifying clients of a data breach after an attacker compromised a third-party support platform and downloaded documents containing personal and financial information used in preparing tax returns.

The incident affected an external IT service-management system used by EY employees supporting the firm’s client tax services. Support tickets created through the platform could include document attachments, creating a route through which confidential tax records and related financial information were exposed.