In a notification letter filed with the Maine Attorney General’s Officer, the company said personal information of roughly 6500 individuals was compromised during a ransomware attack that was identified in mid-June.

An investigation launched into the incident, the company says, has revealed that the attackers first compromised SAC Wireless’ systems in April 13.

The threat actor, known for the use of Conti ransomware, uploaded tools onto the firm’s cloud storage, and deployed ransomware only two months later, on June 13, SAC Wireless disclosed.