Online Extortion Gang Clop Threatens Cleo Hacking Victims

Cybercriminals Say They Hacked 66 Companies David Perera (@daveperera) • December 24, 2024

The Clop cybercriminal group is threatening to make public the companies swept up by its mass hacking of managed file-transfer software built by Cleo Communications.

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Clop, aka Cl0p, a ransomware extortion organization believed to be based in Russia, took responsibility earlier this month for mass attacks targeting Harmony, VLTrader and LexiCom MFT software built by Rockford, Illinois-based Cleo (see: Clop Ransomware Takes Responsibility for Cleo Mass Exploits).

In a Dec. 24 update to its dark web leak site, Clop asserted it has "data of many companies who use Cleo" and that it will publish within 48 hours a list of at least 66 companies it hacked. The criminal gang said it is contacting the companies with extortion instructions after already publishing the first five characters in ...