The department is working on an effort to streamline a complex set of classified networks they use with allies and partners.

Senators are set to meet with top national security officials Thursday as many question President Donald Trump’s decision to ...

The calls included one with hundreds of state and local law enforcement officials from around the country and another with state governors and their staff.

After the targeted attack on Iranian nuclear sites, the Trump administration warns of the threat of terrorist sleeper cells ...

U.S. National Security Advisor Mike Waltz checks his mobile phone while attending a cabinet meeting held by U.S. President Donald Trump at the White House in Washington, D.C., U.S., April 30, 2025.

The concern over TeleMessage. Sign up for The Media Today, CJR’s daily newsletter.. When Michael Waltz, the now former national security adviser, accidentally added The Atlantic’s editor in chief, ...

President Donald Trump's now former national security adviser Mike Waltz was photographed last week using TeleMessage Signal during a cabinet meeting, and the photo seemed to show that he was ...

In a concerning turn of events for cybersecurity, TeleMessage, an app used by former National Security Advisor Mike Waltz to archive his text messages, has suffered a hack. The app, designed to ...

The Democrat said the federal agencies, including former national security adviser Mike Waltz, “recklessly entrusted” TeleMessage, an Israeli company that Wyden said claims to offer a secure ...

Portland-based Smarsh is in the eye of a national security storm with reports Sunday its TeleMessage business was hacked and messages — including those of former National Security Advisor Mike ...