The FBI and the U.S. Cybersecurity and Infrastructure Security Agency are warning email users against a dangerous ransomware scheme.

The Federal Bureau of Criminal Investigation along with the Cybersecurity Infrastructure Security Agency and the Multi-State Information Sharing and Analysis Center are warning of a new phishing campaign by Medusa ransomware operators targeting email users to gain network access.

The FBI and US Cybersecurity and Infrastructure Security Agency (CISA) have issued a warning about the Medusa ransomware, which has hit hundreds of victims.

Medusa demands a ransom payment of thousands alongside a threat of releasing embarrassing information to the public.