These Two Guys Want To Kill All Passwords

Knock is a way to use your phone to unlock your Mac over Bluetooth LE, but its founders have much bigger plans.

Talk about capitalizing on a gimmick. Knock, an app that allows you to unlock your Mac via Bluetooth by double–tapping on the back of your iPhone, certainly sounds gimmicky. But for Knock's founders, this new form of wireless user authentication is about something much, much bigger.

Read Full Story