The Pentagon’s latest report makes one thing clear: Signal protects conversations, but it was never designed to safeguard U.S. war plans — and using it that way carried real risk for American forces.

An instrument that measures radio signals from cosmic ray showers interacting with the Earth’s magnetic field picked up unexplainable signals over 10 years ago, leaving scientists stumped. Researchers ...

A Pentagon inspector general report concluded that Secretary of War Pete Hegseth sent sensitive, nonpublic strike information over the encrypted app Signal using his personal phone, a violation of ...

WASHINGTON – A Pentagon watchdog found that Defense Secretary Pete Hegseth risked the safety of American troops and their mission when he discussed a covert military operation in Yemen over the ...

A highly critical inspector general report found Defense Secretary Pete Hegseth jeopardized troop safety and violated department policy by using the Signal app on his personal cell phone to discuss a ...

The defense secretary has insisted no classified information was shared. A monthslong investigation into Defense Secretary Pete Hegseth's use of the commercial messaging app Signal is complete and its ...

Astronomers have detected the first-ever "radio signal" coming from the interstellar comet 3I/ATLAS, right as it passed the halfway mark on its oneway trip through the solar system. And while this may ...

It’s not just interstellar comet 3I/ATLAS that’s been catching the attention of scientists. Comet 12P/Pons-Brooks, which was first discovered in 1812 and visits the Earth roughly every 71 years, has ...

Crypto signals are alerts that prompt you to buy or sell cryptocurrency or try a new strategy. Signals can be based on technical or fundamental analysis done by a human analyst or artificial ...

WASHINGTON – Defense Secretary Pete Hegseth divulged classified information in March from battlefield commanders about the U.S. attack on Houthi rebels in a chat on the commercial messaging app Signal ...

Meredith Whittaker has been president of the Signal Foundation since 2022. Photo by Julien De Rosa/AFP via Getty Images As head of the non-profit foundation overseeing Signal, the messaging service ...