National Security Agency

By law, the government can't monitor domestic Internet traffic. Hackers suspected of being Russian exploited this blind spot by disguising their origins and working through unwitting U.S. companies.

A U.S. District Court sided with the Justice Department, arguing that by publishing 2019's Permanent Record, Snowden violated nondisclosure agreements signed while working for the NSA and CIA.

Former NSA chief Mike Rogers says the intelligence community knew Russia was taking unprecedented steps during the 2016 election, but only later did it fully grasp the extent of that effort.

Edward Snowden handpicked Barton Gellman as one of three journalists he would work with to reveal government secrets. Gellman's book is an in-depth look at where he agreed and disagreed with Snowden.

In his memoir, the former NSA contractor says he believes he has been proven right as the U.S. has amended laws regarding government surveillance. But the government still wants to prosecute him.

For the director of the National Security Agency, Gen. Paul Nakasone, it means relentlessly tracking adversaries in cyberspace and increasingly taking action against them.

Harold Martin committed the massive theft of government documents over decades, storing files in his car and Maryland home. "My methods were wrong, illegal and highly questionable," Martin said.

Harold Martin, a 54-year-old Navy veteran, was arrested in 2016. Authorities said he amassed a staggering trove of government documents, endangering U.S. national security.

Army Gen. Paul Nakasone, head of the secretive National Security Agency and Cyber Command, is promising more aggressive cybermeasures against rivals. And he's talking about it — at least a little.

The National Security Agency has a reputation as the nation's most secretive intelligence agency. But a new inspector general arrived this year and is calling for a "robust whistleblower program."

Adm. Michael Rogers says Russian President Vladimir Putin has concluded he can continue to meddle in U.S. cyberspace with little price to pay.

The Trump administration put out guidelines for how the government will decide what software vulnerabilities it will share with tech companies to fix, and which ones it will keep to itself for spying.