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Cryptocurrency Tracing Suggests Group Is Rebrand of Russian-Speaking BlackCat GroupEven lesser-known ransomware groups haul in serious extortion cash - although in the ransomware world, little is what it seems. Take relative newcomer Embargo, which appears to be a rebrand of, or successor to, the notorious BlackCat group, also known as Alphv.

There are indications that U.S. healthcare giant Change Healthcare has made a $22 million extortion payment to the infamous BlackCat ransomware group (a.k.a. "ALPHV") as the company struggles to bring services back online amid a cyberattack that has disrupted prescription drug services nationwide for weeks. However, the cybercriminal who claims to have given BlackCat access to Change's network says the crime gang cheated them out of their share of the ransom, and that they still have the sensitive data that Change reportedly paid the group to destroy. Meanwhile, the affiliate's disclosure appears to have prompted BlackCat to cease operations entirely. 

BlackCat pounces on 7TB of data and theatens to release it Staff at one of the UK's largest hospital groups have spent a nervous week wondering if private data, stolen from their employer's IT systems by a ransomware gang, is going to be splurged online after a deadline to prevent publication passed.…