Choosing Option A in Question 2, 6, 7, 8, 10 while creating your founder.
Professions with this skill:
To train security fast, a good stategy in to go in any apartment (university apartment seems to be easier) and try to unlock every door. Since lockpicking is not a crime, you don't have to fear the conservatives, just don't try to lockpick in front of them…
All actions with this skill automatically fail if the skill level is zero. (to train it you must already have it at level 1)