Strauss Borrelli PLLC, a leading data breach law firm, is investigating Teamsters Local Union No. 763 (“Local 763”) regarding its recent data breach. The Local 763 data breach may have involved sensitive personal identifiable information belonging to over 750 individuals.
ABOUT TEAMSTERS LOCAL UNION NO. 763:
Local 763 is a union based in the Pacific Northwest. Representing both public and private sector workers, Local 763 represents members within school districts, government agencies, funeral homes, and more.2 Headquartered in Tukwila, Washington, Local 763 has been representing working-class families across Washington State for over 86 years.2
WHAT HAPPENED?
Recently, Local 763 announced that it had experienced a data breach in which sensitive personal identifiable information in its systems may have been compromised. According to the breach notice, on June 16, 2025, Local 763 became aware of a cyber incident that disrupted certain computer systems.1 As a result, Local 763 launched an investigation to determine the nature of the incident.
Through its investigation, Local 763 confirmed that an unauthorized actor gained access to files stored on Local 174’s servers. As a result, Local 763 began a review of the data to determine what information had been impacted as well as identify the specific individuals affected. While the information impacted varies depending on the individual, the type of information potentially exposed includes:
- Name
- Social Security number
- Date of birth
As a result of the data breach, Local 763 began mailing data breach notification letters to impacted individuals. Based on the breach notice sent to Washington residents, Local 763 is providing affected individuals with a list of the specific types of sensitive information impacted and complimentary credit monitoring services. A link to the breach notification that Local 763 posted is below.
If you received a breach notification letter from Teamsters Local Union No. 763 or 174:
We would like to speak with you about your rights and potential legal remedies in response to this data breach. Please fill out the form, below, or contact us at 872.263.1100 or sam@straussborrelli.com.
