Any lock can be broken, given enough time and the right tools, but there are ways to reduce theft risk:

1. If possible, take your bike indoors with you. Your next best option is locking it where you can still see it. Otherwise, lock your bike in a highly visible, well-lit area as close to your destination as possible.
2. Always lock your bike, even if you are only going to be gone for a minute. Stealing an unlocked or improperly locked bike only takes a few seconds.
3. Take anything removable with you – unlocked wheels, seats, computers, lights, bike bags, etc. If you can remove it, so can a thief.