A dangerous ransomware program has taken data from hundreds of victims hostage—and more could be at risk, according to a warning from multiple federal agencies. Medusa, a ransomware-as-a-service variant,

The FBI, MS-ISAC and CISA released a joint cybersecurity advisory about the Medusa ransomware variant, advising people and organizations to use multifactor authentication and other strategies to prevent attacks from the ransomware-as-a-service provider that has targeted hundreds since 2021.

The FBI has warned Gmail and Microsoft Outlook users about a dangerous program taking data hostage. Medusa ransomware has claimed over 300 known victims working in "critical infrastructure sectors," including hospitals,