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Hackers Exploit Accellion Zero-Days in Recent Data Theft and Extortion Attacks

Cybersecurity researchers on Monday tied astring of attackstargeting Accellion File Transfer Appliance (FTA) servers over the past two months to data theft and extortion campaign orchestrated by a cybercrime group called UNC2546. The attacks, which began in mid-December 2020, involved exploiting multiple zero-day vulnerabilities in the legacy FTA software to install a new web shell named