Democratic leaders of key House committees are reigniting calling for National Security Advisor Mike Waltz to step down.

Senior members of the Trump administration’s National Security Council — including its top national security adviser, Michael ...

Democrats on the Senate Homeland Security Committee say the reported use of Signal and Gmail by national security officials creates major cybersecurity risks.

National Security Advisor Michael Waltz and a senior aide used personal Gmail accounts for government communications, ...

The National Security Council (NSC) has provided clarification on reports about Mike Waltz and his staff using personal Gmail accounts for government communications.

Security specialists have expressed concerns that U.S. national security officials are not consistently using secure government systems like the Joint Worldwide Intelligence Communications System ...

Government agencies are warning of a rise in ransomware attacks targeting users of Gmail and Outlook. Users are advised to enable multifactor authentication, use strong passwords, and keep ...

Trump’s national security adviser is trying to manage his way out of a crisis. But new revelations about his team’s ...

Federal authorities are warning users of Gmail, Outlook, and other popular email ... and these affiliates will use common techniques to breach the data of potential victims, such as phishing ...