Apple has issued a fix for a security problem that could have allowed others to gain access and control of your iPad. The exploit was part of a hack that allowed users to jailbreak the device to install apps that did not come from Apple’s official App Store. The update fixes a security flaw that could allow a malicious PDF file to compromise the operating system (iOS) of the iPad. You can download and install the update through iTunes on the computer where you sync your iPad. Connect your iPad, select it under Devices in the list on the left and look for the Update notice. The iOS 3.2.2 update file is large (nearly 460MB) and downloading may take an hour or more, depending on the speed of your Internet connection. A similar update patches the same problem on the iPhone.