Ewoks. Just saying the name evokes myriad emotions in Star Wars fans. For some, the bear-like creatures that first appeared in 1983’s Star Wars: Return of the Jedi are part of the franchise’s rich tapestry. Others consider the Ewoks a blight and would prefer they not exist at all. (Some fan edits of Return of the Jedi excise the Ewoks entirely, for crying out loud.) They’re the most controversial inhabitants…

The prominent hacker and Ethereum developer Virgil Griffith was arrested by the US government Friday after he spoke at an April conference on blockchain technologies in North Korea. The US government considers his presentation to be a transfer of technology—and therefore a violation of US sanctions. But Griffith’s defenders, including Ethereum founder Vitalik Buterin, describe the arrest as a massive overreaction. Griffith worked for the Ethereum Foundation, and Buterin called…

Happy post-Thanksgiving weekend! Hope you’re still in a turkey coma and survived the lively political discourse with your various uncles. As you shop leftover Black Friday and upcoming Cyber Monday sales, please be safe out there; it’s a scammer’s paradise. Oh, and think twice before you give a device with a microphone or camera, especially to someone who may not realize the privacy and security implications. This week we took…

For almost three years starting in the fall of 2015, a 56-year-old Chinese-American tour guide named Xueha “Edward” Peng would periodically carry out a strange errand: Every few months, he’d book a room at a certain designated hotel—first in California and later in Georgia—and leave $10,000 or $20,000 in cash in the room, inside a dresser drawer or taped to the bottom of a desk or TV stand. Later, he’d…