BreachCensus

Medicare CompareUSA filing on behalf of United Healthcare

United States of America

Medicare CompareUSA filing on behalf of United Healthcare is an organisation in Washington. It appears on the Washington State Attorney General breach-notification register with 1 confirmed incident; the most recent notice was filed on June 27, 2025.

Data as of September 1, 2026.

Confirmed incident

US-WA — Phishing Attack

Occurred
November 5, 2025
Disclosed
June 27, 2025

Timeline

  1. June 27, 2025
    Reported to regulator Regulator

    WA AG breach notification: 1,258 Washington residents affected

    source
What a Washington notice means

Required under RCW 19.255.010. Notice to the Attorney General is required when a breach affects more than 500 Washington residents.

Note: the count is Washington residents only, not a total.

Washington breach-notification register ↗