(NEWSnet/AP) — UnitedHealth is testing the last major system it must restore from last month’s Change Healthcare cyberattack.

The health care giant said Monday that it is testing software for submitting medical claims. It already has largely restored systems for handling pharmacy claims and processing payments.

Change Healthcare provides technology used to submit and process insurance claims. It handles about 14 billion transactions a year and works with claims from several insurers.

The company said last month that the ransomware group ALPHV, or Blackcat, gained access to some of its information technology systems.

Federal civil rights investigators said last week that they would look into whether protected health information was exposed in the attack.

UnitedHealth said Monday that it is expanding temporary funding to support doctors and other care providers affected by the attack. The federal government also is some offering temporary, advance payments for Medicare claims.

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