Protect your Android device from hackers Kurt "The CyberGuy" Knutsson shares tips on how to protect your Android phone from being hacked and other cyberattcks NEW You can now listen to Fox News articles! Your phone lock screen is supposed to be your last line of defense. If your device gets lost or stolen, that PIN or passcode should keep strangers out of your photos, messages and financial apps. But researchers have found a serious flaw that can break through those protections on certain