FBI warns of Silent Ransom Group impersonating IT support

Event Details

The FBI issued FLASH-20260526-01 on Silent Ransom Group, also known as Luna Moth, Chatty Spider and UNC3753. The advisory describes telephone, email and in-person IT impersonation used to steal data and extort victims, particularly US law firms, and provides detection and mitigation recommendations. The group’s extortion does not require file encryption.

Date

26/05/2026

Ransomware Group

Event Category

Level of Cooperation

Country

🇺🇸 United States

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FBI warns of Silent Ransom Group impersonating IT support

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