CLOP Extortion Campaign — Campaign Analysis & Threat Activity

Related Threat Clusters

• Clop Ransomware Targets Gladinet CentreStack Servers for Data Theft

  The Clop ransomware group is conducting a data extortion campaign against Gladinet CentreStack file servers. This attack exploits multiple security vulnerabilities in CentreStack and its related product, Triofox,…

  6 articles · Updated December 19, 2025
• University of Phoenix Data Breach Affects 3.5 Million Individuals

  The Clop ransomware gang breached the University of Phoenix's network in August 2025, compromising the data of nearly 3.5 million students, staff, and suppliers. The university disclosed the breach on its official…

  2 articles · Updated December 22, 2025

Recent Intelligence Reports

• University of Phoenix data breach impacts nearly 3.5 million individuals — Bleepingcomputer · December 22, 2025
• Clop ransomware targets Gladinet CentreStack in data theft attacks — Bleepingcomputer · December 18, 2025

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