PAMCAH-UA Local 675 Health and Welfare Fund Data Breach

PAMCAH-UA Local 675 Health and Welfare Fund, a Honolulu, Hawaii-based multiemployer benefit fund that provides health and welfare benefits to plumbers and their families, recently notified affected individuals of a data security incident involving unauthorized access to certain employee email accounts. Organizations that manage sensitive benefit and health plan data on behalf of their members have a responsibility to safeguard that information, and when access controls fail, the people whose data was exposed deserve a clear explanation of what happened.

PAMCAH-UA Local 675 Health and Welfare Fund’s Data Breach Investigation

According to a notification letter filed with the Massachusetts Attorney General’s office, PAMCAH-UA Local 675 Health and Welfare Fund (“PAMCAH”) learned that an unauthorized party gained access to certain employee email accounts. After discovering the intrusion, the Fund says it promptly launched an investigation. Based on the results of that investigation, PAMCAH believes the unauthorized party had access to the accounts between September 23, 2025, and October 9, 2025, and may have acquired certain items contained in those accounts during that window.

The Fund reviewed the contents of the items the investigation indicated were potentially acquired and determined that the specific information involved varied by individual. PAMCAH states it has no evidence that any of the information involved in the incident has actually been used for identity theft or fraud, but it is notifying affected individuals out of an abundance of caution and has arranged a complimentary two-year Experian IdentityWorks credit monitoring membership for anyone who wishes to enroll.

Employee email accounts are a common target for unauthorized access because a single compromised mailbox can expose years of accumulated correspondence containing sensitive personal and financial details, particularly for organizations like benefit funds that regularly handle plan participants’ health and financial information. Attackers who gain access to business email accounts frequently do so through phishing or credential-stuffing attacks rather than a direct network intrusion, and the resulting exposure can be difficult to fully scope because it depends on exactly what messages and attachments happened to reside in the compromised mailboxes at the time.

PAMCAH’s response, including its internal review of technical security measures and its decision to offer credit monitoring despite finding no confirmed evidence of misuse, reflects a standard breach-response approach in which credit monitoring is offered as a precaution rather than only after fraud is confirmed. Because the exposure window spanned more than two weeks, individuals whose information passed through affected email accounts during that period may want to remain alert for any unusual account activity going forward.

When Did This Breach Occur?

PAMCAH’s investigation determined that an unauthorized party had access to certain employee email accounts between September 23, 2025, and October 9, 2025. The Fund’s notification letter to affected individuals and the filing with the Massachusetts Attorney General followed the completion of its investigation into the incident, with the AG notification filed in early August 2026.

What Information Was Breached?

PAMCAH reviewed the contents of the potentially accessed email accounts and determined the specific information exposed varied by individual, but may have included names, dates of birth, and Social Security numbers. The Fund has stated it currently has no evidence that this information has been used for identity theft or fraud.

What You Can Do

If you received a notice from PAMCAH-UA Local 675 Health and Welfare Fund, consider taking the following steps to protect yourself:

• Enroll in the complimentary two-year Experian IdentityWorks credit monitoring membership offered in the notification letter.
• Regularly review your financial account statements and credit reports for unfamiliar activity.
• Consider placing a fraud alert or a security freeze on your credit file with Equifax, Experian, and TransUnion.
• Request a free copy of your credit report at annualcreditreport.com.
• Report any signs of identity theft to your state Attorney General and the Federal Trade Commission at ftc.gov/idtheft.

File a Data Breach Lawsuit Against PAMCAH-UA Local 675 Health and Welfare Fund

If you received a notice from PAMCAH-UA Local 675 Health and Welfare Fund about this data security incident, you may have legal options available to you. Organizations entrusted with sensitive personal and health-plan information are expected to take reasonable steps to secure it, and when a breach occurs, affected individuals may be entitled to pursue compensation.

Contact us at Class Action U, where we’ll connect you with a lawyer skilled in class action lawsuits. If you’ve been contacted about this breach, received notice, or discovered you were impacted, fill out our quick, easy, and secure form to sign up. There is no cost to reach out to our legal partner and no obligation after speaking with someone from our team.