A dozen current and former officials confirmed that the encrypted messaging app is used across various agencies — despite ...

The team led by U.S. President Donald Trump's national security adviser, Mike Waltz, set up at least 20 group chats on the ...

Why Signal app is at the centre of US 'national security scandal' The Signal app is currently at the center of a significant ...

As fallout from a Trump administration group chat about a military attack in Yemen continues to unfold, some Democrats are ...

The free messaging app Signal has made headlines after the White House confirmed it was used for a secret group chat between ...

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

The national security adviser's use of the messaging app is under scrutiny after he mistakenly added a journalist to a ...

Four sources tell Politico they were aware of at least 20 chat groups, all four confirmed sensitive information was discussed ...

Defense Secretary Pete Hegseth’s use of the Signal group chat with other national security officials to discuss plans for ...

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.

Political fallout is mounting as some Republicans are breaking with the White House on the severity of the leak.

The Pentagon has issued a stark warning against the use of the encrypted messaging app Signal, raising concerns over cybersecurity lapses at the highest levels of government. This advisory comes in ...