Mandiant/FireEye researchers have tentatively linked the Accellion FTA zero-day attacks to FIN11, a cybercrime group leveraging CLOP ransomware to extort targeted organizations. Accellion has also confirmed on Monday that “out of approximately 300 total FTA clients, fewer than 100 were victims of the attack.” A little bit of background information Starting in December 2020, unknown attackers began exploiting previously unknown vulnerabilities in Accellion FTA (File Transfer Appliance), an enterprise file-sharing solution for securely transfering large … More

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