JATC (UA Sprinkler Fitters Local 669) suffered an external network breach May 17-23, 2024. Unauthorized actor copied files with names, SSNs, and driver's license/state ID numbers. Forensic review concluded Jan 28, 2026; 20,623 total individuals affected, 45 Maine residents. Notifications sent Feb 6, 2026. Federal law enforcement notified. 12 months free credit monitoring via TransUnion offered.