All KeepKey devices are protected with a PIN as a barrier to entry for that specific device. The PIN is a combination of up to 9 numbers that you select after initializing your KeepKey. A PIN protects your device against unauthorized use in the event your KeepKey falls into the wrong hands.
You can select a PIN between 1-9 digits - We recommend a PIN length of at least 6 digits.
You will see a randomized, scrambled keypad on your KeepKey display. Find a number you want to choose, then click on the corresponding location in the KeepKey Client Chrome App.
Example: If you'd like to choose the number "6" you would have to click the top left box.
Even if your KeepKey is stolen, it cannot be accessed without the correct PIN. In addition, the number placement is re-scrambled at random each time you connect your device, so even a key-logger cannot decipher your PIN because the numbers are only shown on the device.
You can enter your PIN with confidence on an infected computer. Even if your computer became infected with malware or spyware (such as key-logging software), your PIN would remain safe.
This is the screen your KeepKey device displays when entering your PIN
This is the PIN screen your KeepKey client displays when entering your PIN
As you can see, KeepKey does not reveal the number placement on the screen in the KeepKey client on your computer. The scrambled number placement is only shown on the KeepKey device itself.