List of cyber security breaches that involve the most number of residents of the state of Washington

  1. Equifax, Inc lost data for over 3 Million state residents in 2017

  2. Comcast Cable lost data for over 3 million residents in 2023

  3. T-Mobile, lost over 2 million residents data in 2021

  4. Fred Hutchinson Cancer Center ended up leaking over 1 million users data in 2023