Guardian Credit Union reported a data incident in 2026, which was disclosed through public regulatory materials. The company investigated the incident with third-party forensic specialists, identified documents containing member information, and sent individual notification letters by August 6, 2026. The Massachusetts Attorney General's office was also notified on this date.
The breach involved Social Security numbers, driver's license numbers, and financial account information. Approximately 9 individuals were affected, all of whom were Massachusetts residents. Guardian Credit Union, a member-owned credit union headquartered in Oak Creek, Wisconsin, offered 24 months of complimentary credit monitoring and identity restoration services through Experian IdentityWorks.
At this time, it remains unclear if other states were affected beyond Massachusetts, and the full extent of the incident has not been publicly detailed. Further details may emerge as investigations continue, and additional notices may be delayed.