Medusa ransomware gang has hit over 500 organizations, CISA warns
Brief
Medusa ransomware has breached more than 500 organizations since it first appeared in June 2021, the FBI, CISA, and the Department of Health and Human Services (HHS) said in an updated joint advisory. The update builds on an advisory first issued in March 2025 and draws on FBI investigations conducted as late as April 2026.
“Medusa developers and affiliates have impacted over 500 victims from a variety of critical infrastructure sectors,” the advisory reads, listing … More →
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