Medusa Ransomware has been responsible for hundreds of attacks on critical Infrastructure.

Thee Medusa Ransomware group has been responsible for hundreds of attacks on critical infrastucutre. The Medusa Ransomware group has operated on a afliate model for several years but the main group conducts all ransom negotiations. The group has used phishing and exploits to infiltrate groups. The US government has indicated that some victims have been forced to pay mutitple ransoms due to individuals claiming that mediators did not share the ransom with all actors.

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https://www.securityweek.com/medusa-ransomware-made-300-critical-infrastructure-victims/