The U.S. government has issued an alert about a little-known data extortion group actively targeting businesses.

The June 1 alert from the Federal Bureau of Investigation, the Cybersecurity and Infrastructure Agency, the Department of the Treasury and the Financial Crimes Enforcement Network details a group known as Karakurt Team and Karakurt Lair. Karakurt uses a variety of tactics, techniques and procedures that are said to create significant challenges for defense and mitigation.

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