State-by-state breakdown of patient records affected in ransomware attacks

Neary 1.1 million patients in Michigan have been affected by ransomware attacks since 2016 — the most in the United States, according to a Comparitech survey.

In the Comparitech study released Feb. 11, researchers analyzed data from IT news channels, data breach reports and HHS Office for Civil Rights data breach portal. Then, Comparitech applied data from studies on the cost of downtime to estimate a range for the likely cost of ransomware attacks.

Here is a state-by-state breakdown of the number of patient records affected by ransomware attacks:

  • Alabama: 402,322
  • Alaska: 44,600
  • Arizona: 11,828
  • Arkansas: 128,000
  • California: 753,109
  • Colorado: 37,297
  • Connecticut: 48,726
  • Delaware: 96,076
  • Florida: 43,469
  • Georgia: 193,995
  • Hawaii: 40,800
  • Illinois: 27,839
  • Indiana: 161,400
  • Iowa: 51,617
  • Kansas: 86,087
  • Kentucky: 45,062
  • Louisiana: 136,943
  • Maryland: 31,120
  • Massachusetts: 223,123
  • Michigan: 1,098,263
  • Minnesota: 117,876
  • Mississippi: 58,000
  • Missouri: 305,596
  • Nebraska: 58,341
  • Nevada: 3,898
  • New Hampshire : 2,081
  • New Jersey: 84,327
  • New York: 66,312
  • North Carolina: 925
  • Ohio: 32,660
  • Oklahoma: 6,000
  • Oregon: 2,000
  • Pennsylvania: 343,000
  • Puerto Rico: 522,439
  • Rhode Island: 15,478
  • South Dakota: 10,200
  • Tennessee: 23,500
  • Texas: 483,300
  • Utah: 320,000
  • Virginia: 13,237
  • Washington: 497,502
  • Wisconsin: 21,365

More articles on cybersecurity:
Texas provider alerts 6,500 patients of phishing attack
Connecticut payer alerts 1,100 members of phishing attack
10 tips for hospitals to mitigate ransomware attacks

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