It had freaked me out. I constantly had to type in “blackberry” and then even my device password (and I even had to hit an on-screen button so it doesn’t get exposed to the person next to me) because my phone interpreted being in my pocket as an attempt to unlock the phone via Picture Password. Not only did this annoy me a lot (and made me question why this feature even exists? – I did not think about trying to turn it off somehow though…) I think it also caused a lot of battery drain in my pocket. The reason why I finally came to the conclusion that I had to turn it off somehow: one day I restarted my BB Passport and then put it back into my pocket. It interpreted something as a gesture to unlock (again) and this time the phone asked for the PIN (the unlock code for the SIM-card). Still being in my pocket, the phone interpreted that I entered some digits. Unfortunately it did that three times. And guess what, my pocket did not know the right PIN. So my phone was basically useless. I couldn’t call anyone, I couldn’t text and I was not connected to the Internet. For the rest of the day. I was travelling accross the country but my PUK (the code you need to unlock the phone when three wrong PIN-unlock-attempts failed) was in a drawer at home. So here’s my advice: If this happens from time to time in your pocket just turn “Swipe to Wake” off! Because that only means you have to hit the unlock key before using the phone (which is much quicker than typing “blackberry”, then hitting the “hide my password as I type it”-Button and than typing your device password followed by an enter). It will save you time (in the long run) and battery (also because the touch-sensetivety of the screen can be shut down during the screen-off time. But I’m not sure if it does that, I just guess it works that way).

Do it via “Settings” (App) > “Display” and toggle the switch “Swipe to Wake” to off.