Premise Health Holding Data Breach Notice (Washington Attorney General)

The March 26, 2026 breach at Premise Health Holding exposed the records of 49,444 people, including your name, Social Security number, full date of birth, health insurance policy number, medical information, and protected health information. The organisation did not notify affected Washington residents until its filing on November 06, 2026 — 225 days later.

Seven-and-a-half months passed between the incident and the filing

That interval is the most striking fact in the record. The filing lists the incident date as March 26, 2026 and the submission date as November 06, 2026. Notification timelines vary by state and by when an investigation concludes, so the record does not establish why the gap existed. It simply shows that more than seven months elapsed before the state was formally told.

What the exposed information actually enables

A Social Security number paired with a full date of birth remains one of the most valuable combinations for identity theft. Criminals use it to open accounts, file fraudulent tax returns, or obtain medical services in someone else’s name. Because neither number can be changed, the risk does not expire when the news cycle moves on.

The inclusion of medical information and protected health information owned or licensed by a HIPAA covered entity adds a separate long-term concern. These records can be used for insurance fraud, prescription scams, or blackmail. Health data does not lose its sensitivity over time the way a credit card number does.

No passwords were exposed. The filing does not list any credential-related data, so there is no need to change a password for Premise Health services because of this incident.

How to tell whether this breach affects you

Premise Health Holding is required to notify affected individuals directly, usually by mail. If you have not received a letter, your records were most likely not included. Anyone who has moved since March 26, 2026 should contact the organisation directly to confirm whether their information was part of the 49,444 records.

The permanent exposures you cannot undo

Your name, Social Security number, and date of birth cannot be reissued. Once they are in the hands of unknown parties they stay there. The same is true for the medical and insurance details tied to those identifiers. What you can still control is how closely those records are monitored in the months and years ahead.

Concrete steps that address this specific exposure

• Place a freeze on your credit reports at Equifax, Experian, and TransUnion. This stops new accounts from being opened in your name even if someone has your Social Security number and date of birth.
• Review every Explanation of Benefits statement from your health insurer. Look for services you did not receive; fraudulent claims are a common consequence when medical and insurance IDs are exposed.
• Set up free alerts with all three credit bureaus and with the major medical insurers tied to the policy number listed in your letter. Early warnings are the only practical defense against misuse that may surface months or years later.
• Request your free annual credit reports and scan for unfamiliar accounts or inquiries. Do this every four months, rotating between the three bureaus.
• File your taxes early each year. This reduces the window in which someone can file a fraudulent return using your Social Security number and date of birth.