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

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

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

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 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 ...

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

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

The NSA has issued an urgent warning to millions of iPhone and Android users over the security of their secure messaging apps ...