Ernst & Young security incident history
Hacking, data breaches and other security incidents involving Ernst & Young, with related coverage.
Hack of Ernst & Young's external support system exposes client tax data
Impact: Client personal information including tax and financial data and Social Security numbers
Ernst & Young's external IT support ticketing platform was hacked, exposing clients' personal information including tax and financial data and Social Security numbers. Ernst & Young disclosed the breach and launched an investigation, and a class action lawsuit was later filed. ShinyHunters claimed responsibility for the attack and threatened to release the stolen data.
Related reports: 22 · last report →Ernst & Young cloud migration error exposes 4TB backup
Impact: Database of about 4TB containing company secrets
A cloud migration error at Ernst & Young left a database of about 4TB publicly exposed online. The exposed data was a SQL Server backup stored on Microsoft Azure and contained company secrets.
Related reports: 5 · last report →