WhatsApp is rolling out a beta version for Android users which enables the new security feature of logging into the app from different devices with a 6-digit code. WhatsApp Beta for Android 2.23.1.11 ...

6-digit PINs are far more secure than their 4-digit counterparts - here's how and why to make the switch on both mobile and on PC.

Resetting a Kwikset lock involves removing the battery pack and holding down a button, while changing the code can be done ...

Apple rolled out its new iOS 9 operating system Wednesday and with that comes a big security upgrade. The new operating system will now automatically default to a six digit PIN to unlock your ...

Learning how to use mostly discrete components instead of a microcontroller would be the core objective to build this circuit outside of needing a key-code access point or other secure 12 V relay ...