Vulnerability in Apple iOS 4 allows attackers to remotely execute any code
Based on this vulnerability, the jailbreakme.com service has been built for several days. The user of any Apple product on iOS 4 just go to this page from his device and press a button so that his phone becomes jailbroken. Vulnerability is considered critical because the attack is transparent to the user, and the attacker gets full access to personal data, including local application data, address book entries and passwords in the browser, as well as the ability to transfer them over the network. No comments from Apple have yet been received, the only way to protect your device is to jailbreak it and install a special utility that will issue a warning about browser attempts to open any PDF document.