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

WASHINGTON (AP) — The Pentagon’s acting inspector general announced Thursday that he would review Defense Secretary Pete ...

The move comes soon after far-right activist Laura Loomer urged Trump to purge staffers she deemed insufficiently committed ...

President Trump was urged by far-right activist Laura Loomer to purge staffers she deemed insufficiently committed to his ...

The president of Signal defended the security of the encrypted messaging app on Tuesday after a bombshell report revealed top ...

Learn more about Signal, including whether the news about its use in a military intelligence breach impacts its effectiveness ...

As with any security-focused app, the security is only as robust as the person using it. Signal is designed to encrypt your ...

White House staffers have come under fire after allegedly using the app to discuss sensitive foreign policy plans.

The recent national security breach involving a Signal group chat has raised concerns regarding the messaging app’s security.

A journalist joined a U.S. security chat about airstrikes, raising concerns over Signal's security and potential legal issues ...

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 ...

Senior Trump administration officials used Signal, an encrypted messaging app ... can compromise security, even on encrypted platforms. Experts have also raised concerns about the app’s ability ...