ISIS uses the internet, especially social media, to propagandize and recruit. Members of hacker group Anonymous have turned their sights on these accounts.

Anonymous is not seeking to tear down Trump’s personal privacy, but something much more sacred to him: his brand.

Why did a hacktivist collective like Anonymous repurpose the image of Guy Fawkes for its ubiquitous masks? A scholar looks at how a 17th-century English villain became the face of resistance.

It’s up to the courts to draw a line between free speech and illegal market manipulation. And the Supreme Court has never ruled on this specific question.

The national story of an anonymous Reddit user’s post – and the threat to unmask him – raises important questions about the role of online communication in our society.

The Tor Project is upgrading its protections for internet users’ privacy and anonymity. A scholar and volunteer member of the nonprofit effort explains what’s changing and why.

As cryptocurrency systems improve, they will better protect criminals’ identities and even allow people to offer anonymous rewards for crimes they want committed.

Begun as part of efforts to preserve online anonymity and privacy, Freenet, Tor and the Invisible Internet Project are, like the rest of the web, home to both crime and free expression.

You might think you’re anonymous when you’re browsing the web. But a new study shows that browsing history can often be tied to your real-world identity.

Researchers analyze social media data to gain useful insights into modern society and culture. But it’s important to protect users’ privacy. How can both ends meet?