Former Trump administration national security adviser Michael Flynn filed court papers Tuesday to withdraw his guilty plea.
NSA discovered a major security flaw in Microsoft's Windows 10 operating system that could let hackers intercept seemingly secure communications.
A report on the Intelligence and National Security Summit co-hosted by AFCEA International and the Intelligence and National Security Alliance (INSA).
The opioid crisis in the U.S. has the potential to become a national security threat beyond anything America has experienced from a foreign power.
The Trump administration is sending top national security officials to brief Congress on escalating tensions with Iran, agreeing to multiple meetings intended to head off growing frustration with the president and his senior advisers.
As Security Officials Prepare for Russian Attack on 2020 Presidential Race, Trump and Aides Play Down Threat
In recent months, U.S. national security officials have been preparing for Russian interference in the 2020 presidential race by tracking cyber threats, sharing intelligence about foreign disinformation efforts with social media companies and helping state election officials protect their systems against foreign manipulation.
The effects of climate change and cyberattacks from foreign countries are a greater threat to national security than illegal immigration, former Secretary of Homeland Security Janet Napolitano says.
The Israeli vote next month will settle who runs the state and which coalition sets the terms of debate for the immediate future. But it should be viewed, as U.S. elections should be viewed, as just one moment in time in an existential debate that is going to continue for a long time.
As national security adviser to President Trump, John Bolton has been the chief translator of Trump's unorthodox foreign policy views to the vast U.S. bureaucracy.
Omarosa Manigault Newman said she secretly recorded conversations, including her firing by chief of staff John Kelly, in the high-security Situation Room.