On June 16, 2025, Teamsters Local Unions 117, 174, and 763 discovered a data breach when an unauthorized third party accessed files on their servers. The unions notified the Washington Attorney General’s office on July 15, 2025.
The breach affected 124,703 individuals in Washington state. The exposed data types included names, dates of birth, and Social Security numbers. The unions have not publicly identified the threat actor or detailed the exact attack method. No mention of medical or financial data beyond personally identifiable information has been made. The unions are offering 12 months of free credit monitoring services to all affected individuals.
Details about data breaches can emerge later, and notices may be delayed.