The agencies warn Gmail and Outlook users to be on the outlook for harmful emails containing ransomware — a kind of malicious software that prevents you from accessing your computer files, systems or networks and demands you pay a ransom for their return.

Cyber security officials are warning email users against a ransomware scheme. The ransomware-as-a-service software called Medusa has been used to conduct ransomware attacks since 2021 via phishing methods. Falling victim to a phishing scam can result in financial theft.