Ready for a fresh set of puzzles? Click here for the July/August 2025 Puzzle Corner, brought to you by guest editor Ed Faulkner ’03. Send problems, solutions (by August 1), and comments to puzzlecorner@technologyreview.com. Editor emeritus Allan Gottlieb ’67 launched Puzzle Corner in 1966. Find back issues through 2022 at cs.nyu.edu/~gottlieb/tr and more recent back issues at technologyreview.com/puzzle-corner.
Bluesky announced on Monday that it is rolling out blue check verification, confirming previous rumors that this feature was on its way to the platform. Like Twitter’s original blue check (RIP), Bluesky’s blue check will verify that notable accounts are legitimate, making it easy for users to trust that an account’s posts are real. In […]
Popular social network and forum site Reddit reported significant outages on Monday morning. The connection errors started at around 11:20 a.m. ET, according to the website Downdetector, which collects anecdotal reports from impacted users globally. At its peak, more than 90,000 users logged an outage report with the downtime tracking website. At 11:52 a.m. ET, […]
An AI doctoral student in California had their SEVIS record — the digital proof of their valid student visa — terminated, putting their immigration status at risk. Speaking to TechCrunch, the student, who requested anonymity for fear of reprisal, said they were notified via their college’s international student center that they’d been identified in a criminal records […]