Senior Trump administration officials used Signal, an encrypted messaging app, for military discussions and accidentally included a journalist, exposi ...

The team led by U.S. President Donald Trump's national security adviser, Mike Waltz, set up at least 20 group chats on the commercial Signal app to coordinate official work on issues involving China, ...

Plus: A US judge rules against police cell phone “tower dumps,” China names alleged NSA agents it says were involved in ...

US president defends key security official after journalist says he was added to group chat about air strikes.

In some cases, federal agencies have permitted the use of Signal, the encrypted messaging app used by top Trump officials to ...

Top Trump administration national security officials’ use of the messaging app Signal is raising new questions ... the materials to determine any legal issues at this point.

The Trump cabinet’s shocking leak of its plans to bomb Yemen raises myriad confidentiality and legal issues. The security of the encrypted messaging app Signal is not one of them.

Secure messaging app Signal has been in the spotlight this week for national-security reasons, but companies can also learn lessons from the Trump administration’s misstep.

The Pentagon issued a warning over the popular messaging app Signal last week, blaming Russian hackers for the vulnerabilities that may reveal sensitive information to them. This came just days ...

National security adviser Mike Waltz’s team regularly set up chats on Signal to coordinate official work on issues including ... s a more extensive use of the app than previously reported ...

Signal is a private messaging app that has historically prioritised security and privacy ... "The fundamental issue is simple: encryption is mathematics and mathematics doesn't discriminate ...