Should the government be able to get a warrant to search a potentially unlimited number of computers belonging to unknown people located anywhere in the world? That’s the question posed by the Playpen case, involving the FBI’s use of malware against over a thousand visitors to a site hosting child...

Do you get creeped out when an ad eerily related to your recent Internet activity seems to follow you around the web? Do you ever wonder why you sometimes see a green lock with “https” in your address bar, and other times just plain “http”? EFF’s team of technologists and...

The European Court of Justice (ECJ) recently announced its decision in Sony v McFadden with important consequences for open wireless in the European Union. The court held that providers of open wifi are not liable for copyright violations committed by others, but can be ordered to prevent further...

It often feels like everyone inside and outside the government agrees that over-classification of government records is a major problem. Yet a series of Freedom of Information Act requests by EFF has found that even when Congress allowed agencies to offer cash rewards to government employees to be less secretive,...

The warrant the FBI used in the Playpen investigation—which resulted in the delivery of malware to over a thousand computers, located around the world—violated Rule 41, an important rule of federal criminal procedure. Although Rule 41 may seem obscure, it plays a vital role in limiting when federal law...

In August, an entity calling itself the “Shadow Brokers” took the security world by surprise by publishing what appears to be a portion of the NSA’s hacking toolset. Government investigators now believe that the Shadow Brokers stole the cache of powerful NSA network exploitation tools from a computer located outside...