A group of iOS programmers called Evad3rs released its latest untethered jailbreak Evasi0n 7, which works on iPhones, iPads and iPods running iOS 7.0 through iOS 7.0.4. The software takes about 5 minutes to jailbreak an iOS device and works on Windows and OS X.
The jailbreak has not yet been fully tested. Jay Freeman, the owner of Cydia -- where users can download third-party apps not approved by Apple -- said that he had not received "lead time on evasi0n7, nor was I asked for an official iOS 7 Cydia; I was not given builds, nor was I asked for things to test."
“Evasi0n” Overloads Servers As Over 270,000 People Download The New Jailbreak For iOS 6.0/6.1 Devices, Including iPhone 5 | TechCrunch
Once an iOS device is jailbroken, it can run third-party apps not offered in Apple Inc.'s App Store. Jailbroken iOS devices can also be customized more than a non-jailbroken device: app names can be changed, default apps can be changed, and Siri can be used to search YouTube. Apple recommends against jailbreaking devices for security reasons.
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On Feb. 4, Evad3rs released an iOS 6 jailbreak. Demand for the tool quickly overloaded the team's website, with more than 270,000 users simultaneously on the site at one point. Within four days of the jailbreak's release, it was used on 5.15 million iPhones, 1.35 million iPads, and 400,000 iPod touches running iOS 6.
The iPhone was first jailbroken less than two weeks after its launch on June 29, 2007. Subsequent jailbreaks have typically taken longer. Apple has made iOS and the iPhone (and iPad) harder to modify, but it's also made some accommodations to users who want to use third-party apps and services.