At the Supreme Court, a Plea to Reveal Secret Surveillance Rulings

The justices will soon consider whether to hear a case arguing that the First Amendment requires disclosure of a secret court’s major rulings.

Opinion | Don’t Get Bezosed

A spyware flaw, Elizabeth Holmes and my latest Facebook alert.

Opinion | Don’t Get Bezosed

A spyware flaw, Elizabeth Holmes and my latest Facebook alert.

How the N.Y.P.D. Is Using Post-9/11 Tools on Everyday New Yorkers

Two decades after the attack on New York City, the Police Department is using counterterrorism tools and tactics to combat routine street crime.

After Stabbing Attack, New Zealand Examines Its Antiterrorism Efforts

A man who wounded seven people in a supermarket had been under surveillance for months. Officials say a loophole in the country’s laws needs to be closed.

‘I Helped Destroy People’

Terry Albury, an idealistic F.B.I. agent, grew so disillusioned by the war on terror that he was willing to leak classified documents — and go to prison for doing it.

Are Apple’s Tools Against Child Abuse Bad for Your Privacy?

The backlash to Apple’s efforts to fight child sexual abuse show that in the debate between privacy and security, there are few easy answers.

Watchdog to Scrutinize Fox News Host’s Claim the N.S.A. Spied on Him

Tucker Carlson accused the government of intercepting his emails without disclosing that he had been reaching out to the Kremlin.

Israeli Spyware Maker Is in Spotlight Amid Reports of Wide Abuses

Data leaked to a consortium of news organizations suggests that several countries use Pegasus, a powerful cyberespionage tool, to spy on rights activists, dissidents and journalists.

Bitcoin and Encryption: A Race Between Criminals and the F.B.I.

The F.B.I. scored two major victories, recovering a Bitcoin ransom and tricking lawbreakers with an encryption app. But criminals may still have the upper hand.

Opinion | Leaking the Pentagon Papers Was an Assault on Democracy

The way we control secrets has been established by Congress and the executive branch, both accountable to the public and the courts. Daniel Ellsberg, accountable to no one, took it upon himself to steer the ship of state.

China Still Buys American DNA Equipment for Xinjiang Despite Blocks

The U.S. government has long tried to prevent the sales over concerns about rights abuses and surveillance. Documents show those efforts have failed.

Opinion | What Is America’s Spy Court Hiding From the Public?

Many of the decisions of the Foreign Intelligence Surveillance Court have not seen the light of day. That’s irreconcilable with the Constitution.

Apple’s Bargain in China

Apple touts its commitment to privacy and free speech. That’s why its China operation is so striking.

Opinion | Will We Ever Get Beyond ‘The Fire Next Time’?

The history of Black rebellion demonstrates a fundamental reality. Police violence precipitates community violence in a vicious cycle.