Cyber Incident Victim: Plymouth County Correctional Facility
Timeline
Summary
The Plymouth County Correctional Facility's computer system was shut down after a cyber intruder bypassed its security and accessed its servers, prompting an investigation by state police, the FBI and the Department of Homeland Security. The breach was detected by the jail's information technology employees, though it remains unclear what information, if any, was obtained. As a precaution, in‑person inmate visits were paused because the facility could not retrieve security documents clearing visitors, while lawyer visits and inmate access to tablets and phones continued. Officials stated that physical security of the facility, staff, detainees and the public was not at risk and that there is no evidence personal information has been misused, urging employees to stay vigilant.
| CIA Posture | Motives | Tactics, Techniques & Procedures |
|---|---|---|
| Available to members | 0 motives | 0 techniques |
| Threat Actors | Type | Location |
|---|---|---|
| 0 actors | Available to members | Available to members |
Description
The Plymouth County Correctional Facility’s computer system was shut down on Thursday after a cyber intruder bypassed the jail’s security system and accessed its servers, according to an official statement. The breach was detected early that morning by the facility’s information technology employees, who alerted the Plymouth County Sheriff’s office. State police, the FBI and the Department of Homeland Security launched an investigation to determine the scope and intent of the intrusion. A spokesperson for Sheriff Joseph D. McDonald Jr. noted that it remained unclear what information, if any, had been accessed by the intruder.
In-person inmate visits were immediately paused because the jail could not retrieve the security documents required to clear visitors for entry, while lawyers continued to be permitted to see their clients and inmates retained access to tablets and phones. The jail’s statement emphasized that at no time had the physical security of the facility, its staff, detainees or the general public been compromised. Officials also said there was no evidence that personal information had been misused as a result of the breach. Employees were advised to remain vigilant by reviewing account statements, monitoring credit reports and reporting any suspicious activity.
The investigation will continue to ascertain what the intruder was seeking, and the jail’s system will remain inaccessible until the inquiry is concluded. The coordinated response involves multiple law‑enforcement agencies working alongside the facility’s IT staff to contain the incident and preserve evidence. No further details about the attacker’s identity or methods have been disclosed at this time.