So [Oliver] set out to use a microcontroller to brute-force the EFI PIN. You can read his back story at the link above. He had the chance to enter a 4-digit pin before the format process.

But if you prefer the ease of using a PIN, switching to a six-digit PIN is a smart move. Here's how to set it up on an Android phone. Open the Settings app on your phone. Go to Security > Screen Lock.

Netflix has a new feature called profile lock, which lets you set up a PIN to prevent other people on your account from getting into your individual profile. Here’s how to set it up.

If your smart lock is connected to a voice assistant, be sure to use a PIN to unlock it with voice commands. It's a stretch, but it is possible to create workarounds with IFTTT to avoid using the PIN.

This guide will show you the steps to enforce a new 6-digit PIN to lock/unlock your Windows 10 Mobile phone. When you purchase through links on our site, we may earn an affiliate commission.