National Guard troops began arriving in Los Angeles early Sunday on orders from President Donald Trump in response to clashes ...

Hackers tied to China’s government have tried repeatedly to access the phones of prominent Americans, part of Beijing’s sprawling cyberespionage efforts.

Cybersecurity investigators noticed a highly unusual software crash — it was affecting a small number of smartphones ...

Former President Joe Biden moved to block new federal coal mining leases in a coal-rich region of Montana and Wyoming in May ...

From Taft to Biden, presidents have had varying relationships with golf, with Trump's approach standing out for using the ...

Foreign hackers have increasingly identified smartphones, other mobile devices and the apps they use as a weak link in U.S.

The Defense Department’s Inspector General has spent several weeks interviewing Hegseth’s current and former staff members.

The Pentagon watchdog is looking into whether any of Defense Secretary Pete Hegseth’s staffers were asked to delete Signal ...

The Pentagon inspector general’s office, which is examining the episode, also has questioned potential witnesses about any ...

The potential emergence of artificial general intelligence (AGI) is plausible and should be taken seriously by the U.S. national security community. Yet the pace and potential progress of AGI's ...