Help protect your personal information and help prevent others from using
without your permission.
Choose to set a screen lock pattern, numeric PIN, or other means of securing your phone. You'll be asked to unlock the screen every time
HTC One is turned on or when it’s idle for a certain period of time.
Go to Settings, and then tap
Select a screen lock option and set up the screen lock.
Lock phone after, then specify the idle time before the screen is locked.
Tip: You can also clear
Make pattern visible or
Make passwords visible if you don’t want your screen lock to display as you enter it onscreen.