National Security Advisor Michael Waltz and a senior aide used personal Gmail accounts for government communications, according to a Washington Post report published yesterday.

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

Lawmakers and experts alike have raised concerns that use of Signal and Gmail for official business may violate federal records-keeping laws. These types of publicly available apps are also easier ...

Google is rolling out an end-to-end encrypted email feature for business customers, but it could spawn phishing attacks, ...

Sen. Adam Schiff (D-Calif.) asked the National Archives and Records Administration (NARA) to investigate Trump administration ...

Gmail is even less secure than Signal, the encrypted messaging app that’s available to the public. The use of the email service is the most recent instance of top national security officials ...

Reuters this week reported that U.S. Defense Secretary shared classified information with wife, brother, lawyer. How does the ...

Democratic leaders of key House committees are reigniting calling for national security adviser Mike Waltz to step down.