JPMorgan Chase Suffers Data Breach Affecting Personal Information of 451,809 Customers. JPMorgan Chase says it has discovered a data breach affecting the personal information of nearly half a million customers.
The bug allowed unauthorized access to retirement plan records of 451,809 customers, which contain names, addresses, Social Security numbers and bank account numbers.
JPMorgan says it now fixed the issue, which erroneously gave full access to several “authorized system users” who were employed by JPMorgan customers or their agents.
