iOS update - patches vulnerabilities but prevents jailbreaking

Apple has released a new update : iOS 4.3.4 for iOS devices which patches a major vulnerability. Earlier apple devices could be hacked using a malicious kind of pdf document, which gave hackers complete control of yours device. The security update patches this vulnerability, it further prevents easy jailbreaking of iOS 4.3.3 using web based jailbreakme3.0


You can prevent hacking of your device by updating it. To update your device, plug it into itunes.