Croatian research institute confirms ransomware attack via ToolShell vulnerabilities

Croatian research institute confirms ransomware attack via ToolShell vulnerabilities

The Ruđer Bošković Institute in Croatia was targeted by a ransomware attack exploiting Microsoft SharePoint ToolShell vulnerabilities, affecting thousands of institutions worldwide. The Institute is responding with data restoration, a new cybersecurity framework, and ongoing forensic analysis. #ToolShell #Warlock #CroatianCybersecurity #RBI

Keypoints

  • The attack exploited SharePoint ToolShell vulnerabilities to deploy ransomware.
  • The ransomware affected the Institute’s administrative and professional data.
  • The Institute refused to pay the ransom and is restoring data from backups.
  • An ongoing forensic investigation is being conducted with Croatian cybersecurity agencies.
  • The Institute is constructing a new IT infrastructure compliant with cybersecurity standards.

Read More: https://www.helpnetsecurity.com/2025/08/13/croatian-research-institute-confirms-ransomware-attack-via-toolshell-vulnerabilities/