Chinese scientists have claimed a major advance in military communications technology—one that could allow tanks, warships, ...

This phase shift property is the very thing we want for our modulating signal in SSB generation. In the case of Figure 7 , I took each frequency component of a square wave—by which I mean the ...

If you hadn’t heard of Signal before Monday, chances are you have now. The secure messaging app, available for iPhones and Android devices, has long been popular with journalists because of its ...

Trump defends security team after Yemen chat leak 04:33. An encrypted messaging app called Signal is drawing attention and questions after top Trump officials — including Defense Secretary Pete ...

Several days after top national security officials accidentally included a reporter in a Signal chat about bombing Houthi sites in Yemen, a Pentagon-wide advisory warned against using the ...

NSA warned about using Signal a month before leak of Houthi strike chat 12:41. The National Security Agency sent out an operational security special bulletin to its employees in February 2025 ...

March 25 (Reuters) - Top Trump administration officials used messaging app Signal to share war plans and mistakenly included a journalist in the encrypted chat, spurring calls by Democratic ...

What to know about Signal, which the Pentagon previously discouraged workers from using. Trump officials have come under fire for using the app to discuss war plans.

Signal’s new feature lets you create and share a username to connect with other users in the app instead of revealing your phone number. Usernames on Signal are out of beta and available to all.

As became apparent this week, Signal is also used among those in high levels of government attempting to keep their communications secure. But in an article published in The Atlantic on Monday ...