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Aside from leading to the deferral of patient care and prescription processing, such an attack against Change Healthcare has also led to the proliferation of malicious actors purporting to be hospital representatives to obtain credit card numbers, as well as excessive burdens for health providers, according to the lawsuit.

Unauthorized systems access has prompted the exfiltration of names and other personal data, said Regional Care in a filing with the Office of the Maine Attorney General that noted the breach's discovery almost a week after the intrusion commenced.

Attackers claimed to have stolen at least 1 TB of data from the Deloitte-maintained RIBridges system.