As such, Penn Police is stepping up patrols after an uptick in theft notices, per a message sent to the University community. The change is incredibly simple: Cops will be around bike racks more often. Be warned, thieves.
Penn's bike theft prevention initiative mentions several steps to stop bike theft: Use a U-Lock (which you should thread through your frame and tire — and take off one tire if possible) and to avoid chaining your bicycle to anything that's easily defeated. Simple stuff.