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How the ransomware attack at Change Healthcare went down: A timeline
A hack on UnitedHealth-owned tech giant Change Healthcare likely stands as one of the biggest data breaches of U.S. medical data in history.
Months after the February data breach, a “substantial proportion of people living in America” are receiving notice by mail that their personal and health information was stolen by cybercriminals during the cyberattack on Change Healthcare. The status page on Change Healthcare’s website was flooded with outage notifications affecting every part of its business, and later that day the company confirmed it was “experiencing a network interruption related to a cyber security issue.” Clearly something had gone very wrong. A dark web leak site associated with the ALPHV/BlackCat gang also took credit for the attack, claiming to have stolen millions of Americans’ sensitive health and patient information, giving the first indication of how many individuals this incident had affected.
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