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

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

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

Okta CEO Todd McKinnon addresses the Signal group chat incident and said it was likely a usability issue rather than cyber ...

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

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

The White House is clapping back against media reports claiming intel officials have been using the end-to-end encrypted ...

Government ministers routinely use encrypted messaging apps including WhatsApp and Signal amid concerns they might be used to ...

Waltz, U.S. Defense Secretary Pete Hegseth and others have faced sharp criticism following revelations last month they used Signal, an encrypted messaging app, to coordinate and share highly ...