Federal authorities have issued an advisory warning people of Medusa ransomware that has breached the data of more than 300 people since February.

Faced with major ransomware attacks affecting critical industries, cybersecurity officials are asking companies and individuals to step up their safety practices.

Federal agencies are warning Gmail and Outlook email users of a costly ransomware scheme that has already affected more than 300 victims. The FBI and the U.S. Cybersecurity and Infrastructure Security Agency issued the advisory, detailing a warning about the Medusa hacking organization, which has been active since 2021.