The FBI and the U.S. Cybersecurity and Infrastructure Security Agency are urging users of popular email services like Gmail and Outlook to be on the lookout for a dangerous and potentially costly ransomware scheme. A bulletin released this week detailed a warning for the Medusa ransomware gang, a group that’s been active since 2021.

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

The FBI has sounded the alarm for Gmail and Microsoft Outlook users about a malicious program known as Medusa, which has hijacked the data of hundreds of victims.This ransomware has ensnared over 300 individuals across "critical infrastructure sectors,