BreachCensus

Grandview School District

United States of America

Grandview School District 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 15, 2026.

Data as of September 1, 2026.

Sources

Confirmed incident

US-WA — Ransomware Attack

Occurred
September 28, 2024
Disclosed
June 15, 2026

Timeline

  1. June 15, 2026
    Reported to regulator Regulator

    WA AG breach notification: 9,414 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 ↗

Related

Disclosed around the same time