Hak5 1217.1, Hack any 4-digit Android PIN in 16 hours with a USB Rubber Ducky - YouTube
Hackers could crack your phone PIN in just three attempts | Daily Mail Online
Your Android lock pattern can be cracked in just five attempts
PIN Cracker:Amazon.de:Appstore for Android
GitHub - urbanadventurer/Android-PIN-Bruteforce: Unlock an Android phone (or device) by bruteforcing the lockscreen PIN. Turn your Kali Nethunter phone into a bruteforce PIN cracker for Android devices! (no root, no adb)
What if the FBI tried to crack an Android phone? We attacked one to find out
A simple Android lock screen bypass bug landed a researcher $70,000 | TechCrunch