Blue Cross Blue Shield of IL BreachDate: June 2023

Blue Cross and Blue Shield of Illinois is the largest insurance provider in the state. The company is based in Chicago and serves more than 8.9 million individuals. With so many active customers at the company, data is constantly flowing through the organization.

 

What Was the Breach?

  • Social Security Numbers
  • Insurance Claim Numbers
  • Home Addresses
  • Phone Numbers
  • Full Names
  • Medical Insurance Information
  • Bank Account Numbers

How Did the Breach Occur?

According to the report to the Maine Attorney General's office, the data breach actually occurred at a third-party company called TMG Health. This company was managing some of BCBS's customer data, which was lost to the breach.

When Did This Breach Occur?

Blue Cross and Blue Shield of Illinois discovered the data breach on June 23, 2023. The breach is suspected to have occurred on June 21, two days earlier than when it was discovered. It was quickly blocked, and an investigation began immediately after.

Who Does the Breach Impact?

BCBS of Illinois customers were impacted by this data breach. We don't know exactly how many total customers had data exposed by the breach, but we know the information exposed was significant.

 

How Many Files Does the Breach Affect?

There is no official BCBS file count for this breach. We believe many files were lost in the breach and that many people were exposed, but we have no data to verify that statement currently.

 

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