David is then joined by Ambassador Susan Rice for a sweeping conversation on the disintegration of national-security ...

Nahal Toosi is POLITICO’s senior foreign affairs correspondent. She has reported on war, genocide and political chaos in a ...

The company behind the Signal clone used by at least one Trump administration official was breached earlier this month. The ...

An information exposure flaw in TeleMessage has been added to CISA’s Known Exploited Vulnerabilities catalog. The ...

Last week, a Reuters photograph of Mike Waltz, then the national security adviser, showed that he was using the application to read Signal messages ... about security issues for more than two ...

Signalgate was the national security adviser’s most glaring mistake. But his problems ran deeper. After Michael Waltz, the ...

The staff shake-up comes as the administration confronts foreign policy issues ... plans in two Signal chats with dozens of people have spurred calls for the defense secretary's firing. But Trump has ...

Recent critiques of judges from the Trump administration have prompted fears the Marshals could be caught in the middle of a ...

Former Biden White House national security adviser Jake Sullivan said the meeting between President Donald Trump and ...

He did so in one Signal group that was set up by the White House national security adviser ... with an assignment to improve military justice issues. Former top aides to Defense Secretary Pete ...

The fiasco now known as Signalgate raises many urgent issues related to national security ... such the U.S. Cybersecurity and Infrastructure Security Agency, now recommend using Signal for ...