The Feds have warned organizations about a lesser-known extortion gang Karakurt, which demands ransoms as high as $13 million and, some cybersecurity folks say, may be linked to the notorious Conti crew. In a joint advisory [PDF] this week, the FBI, CISA and US Treasury Department outlined technical details about how Karakurt operates, along with actions to take, indicators of compromise, and sample ransom notes.

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