In the age of digital communication, the fallout from the recent Signal group chat leak has captured the public's attention and prompted significant discussions about national security. This incident ...

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

Lawmakers and legal experts claim the Yemen Signal group chat ‘blatantly violated security regulations designed to prevent ...

Did Defense Secretary Pete Hegseth’s messages detailing planned U.S. airstrikes in Yemen constitute a classified war plan?

The Trump administration’s Signal chat leak represents the "profound" risk of "uncontrolled communication," which could have implications on future operations, a former national intelligence ...

President Trump suggested Wednesday that the Signal messaging platform his top national security brass used to discuss the Houthi strike may be “defective.” While defending Defense Secretary Pete ...

The recent Signal chat leak has caused some to criticize the encrypted messaging app itself. According to two Denver experts, ...

The White House has confirmed a journalist was inadvertently added to a chat where national security officials discussed a ...

National security experts and lawmakers are raising alarms over potential intelligence compromises after Trump administration ...

The White House said Monday it has concluded its review into how a journalist was added to a Signal message group chat, as ...

Sue Gordon, former principal deputy national intelligence director, said the Trump administration needs to deal with any ...