You're totally protected when it comes to all things computer-related, but what about those cell phones and pdas? These devices are just as vulnerable, and your gadgets could use a security upgrade. So get to it. First and foremost restrict access with a password. Update your device's software. Check the website or contact your service provider for the latest version. Speaking of software, be careful about third-party applications. And when not in use, lock up your gadgets. Safety first!