Enlarge (credit: @Checkra1n) It has been a week since the release of Checkra1n, the world’s first jailbreak for devices running Apple’s iOS 13. Because jailbreaks are so powerful and by definition disable a host of protections built into the OS, many people have rightly been eyeing Checkra1n—and the Checkm8 exploit it relies on—cautiously. What...

Enlarge / The US House of Representatives. (credit: Wally Gobetz / Flickr) On Wednesday, Republican lawmakers committed a major breach of security guidelines when they carried cell phones as they tried to force their way into a secure room where a closed-door impeachment hearing with a Defense Department official was taking place. At least one...

Enlarge (credit: Thomas Trutschel/Photothek via Getty Images) When you visit a new website, your computer probably submits a request to the domain name system (DNS) to translate the domain name (like arstechnica.com) to an IP address. Currently, most DNS queries are unencrypted, which raises privacy and security concerns. Google and Mozilla are...

Enlarge (credit: Joshua Lott/Bloomberg via Getty Images) For nearly three years, the December 2016 cyberattack on the Ukrainian power grid has presented a menacing puzzle. Two days before Christmas that year, Russian hackers planted a unique specimen of malware in the network of Ukraine's national grid operator, Ukrenergo. Just before midnight,...

Enlarge (credit: Shenzhen i365 Tech) An estimated 600,000 GPS trackers for monitoring the location of kids, seniors, and pets contain vulnerabilities that open users up to a host of creepy attacks, researchers from security firm Avast have found. The $25 to $50 devices are small enough to wear on a necklace or stash in a pocket or car dash compartment....

Enlarge (credit: NurPhoto | Getty Images) The perils of Google Play are once again on display with the discovery of an app with 100 million downloads that contained a malicious component that downloaded secret payloads onto infected Android devices. Throughout most of its life, CamScanner was a legitimate app that provided useful functions for...