ROCHESTER, NY (WIVT/WBGH) – Wegmans is paying a large fine for a cloud storage data breach that affected millions of customers last year.

New York State Attorney General Letitia James secured a 400 thousand dollar penalty from the grocery store chain based in Rochester.

According to state documents, a security researcher informed Wegmans of a cloud storage container that was left unsecured in April last year.

The container consisted of mailing addresses, passwords, and names belonging to more than 3 million customers nationwide.

Wegmans officials at the time said databases used to store internal information were inadvertently left open to potential outside access.