US Congress Staff Bans Yahoo Mail After Service Fails to Flag Ransomware Attacks
Security Update : Systems administrators for the House of Representatives have temporarily banned the usage of Yahoo’s Mail service after saying the service has failed to detect mass phishing attacks spreading ransomware.
According to an internal email sent by the Technology Service Desk to the house staff on April 30, the system administrators revealed an increase of ransomware attacks on the house’s IT network.
An anonymous source told Gizmodo that a ransomware infection affected at least one computer. The source said the IT staff managed to isolate it before allowing it to spread.
Staff claims that attackers sent phishing emails claiming to be from known senders. Attackers used both Yahoo Mail and Gmail services, but predominantly Yahoo.