Silent Ransom Group Escalates Law Firm Attacks
🔒 The FBI warns that the Silent Ransom Group (SRG), also known as Luna Moth and UNC3753, has increasingly targeted US law firms since 2023 using advanced social engineering. SRG has shifted from phishing and callback tactics to impersonating IT staff via phone and in-person visits to gain remote or physical access. Once inside, actors use legitimate tools like WinSCP or renamed Rclone to exfiltrate data without encrypting systems. The FBI recommends stronger cyber hygiene, phishing-resistant MFA, visitor verification, and limiting remote access and external drive installation on sensitive endpoints.
