Google’s system basically keeps all the security of a SIM PIN, while removing all the inconvenience. Just make sure you jot down the Android-managed PIN somewhere secure, in case your phone ever dies ...

The following is a true story: I went for a hike. It was lovely. As I was finishing — two hours and 1,700 vertical feet later — I realized I’d dropped the keys to my vehicle somewhere along the trail.

Four digit PIN codes protect everything from your bank account to your cell phone. But if you choose your PIN yourself, chances are your money and data isn’t as safe as you think. ABC News Australia ...

If you have an Apple or an Android phone—and you probably do—you have the option of locking your phone using a PIN code. With most of these phones, you can choose a four-digit PIN or a six-digit PIN.

Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. Keeping your iPhone or Android device secure is a no-brainer.