The ALPHV/BlackCat ransomware group has claimed responsibility for the cyberattack that targeted Optum, a subsidiary of UnitedHealth Group (UHG), causing disruption to the Change Healthcare platform and affecting pharmacy transactions across the US. ALPHV/BlackCat is back Last December, US law enforcement successfully shut down the ransomware group’s websites, and the FBI developed a decryption tool. Despite this setback, the group quickly recovered and resumed its activities. On Wednesday, the group published a statement on their … More
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