The claims spread after members of President Donald Trump's White House accidentally added The Atlantic's editor-in-chief to a group chat.

The federal office in charge of ensuring cybersecurity at all levels of the government cited the use of encrypted messaging app Signal as a "best practice" for "highly targeted" government officials, ...

Defense Secretary Pete Hegseth and other Trump officials allegedly used Signal for a group chat to discuss a highly sensitive operation.

Signal is a free app that cybersecurity experts consider to be one of the most secure messaging services because of its ...

A messaging app called Signal was recently the preferred communications platform for top officials in the Trump administration to discuss war plans.

The suit accuses Trump officials of violating federal record-keeping laws by using a chat app that can be set up to “automatically delete messages.” ...

Senior administration officials have struggled to explain why the publicly available app was used to discuss such a delicate ...

Top intelligence officials testified this week that no classified information was shared over the group chat. CIA Director John Ratcliffe said that Signal was a “permissible work-use application ...

Government officials have used Signal for organizational correspondence ... it on their White House-issued phones were instructed to use the app sparingly, according to a former national security ...

A Department of Defense memo from 2023 under the Biden administration detailed that while Signal was approved for some use by government officials, they could not use the platform to "access ...

The best is to be there." Mr. Trump said Signal is the "No. 1 device or app that is used" that he had asked Waltz to explore its use by government officials. Meanwhile, Democratic lawmakers are ...

Do other government officials use Signal? Encrypted messaging apps are increasingly popular with government officials, according to a recent Associated Press review. State, local and federal ...