Major Marines data breach affects 21,000

The personal information of thousands of Marines, sailors and civilians, including bank account numbers, was compromised in a major data spillage emanating from U.S. Marine Corps Forces Reserve.

Roughly 21,426 people were impacted when an unencrypted email with an attachment containing personal confidential information was sent to the wrong email distribution list Monday morning.

The compromised attachment included highly sensitive data such as truncated social security numbers, bank electronic funds transfer and bank routing numbers, truncated credit card information, mailing address, residential address and emergency contact information, Maj. Andrew Aranda, spokesman for Marine Forces Reserve said in a command release.