Just about every lock in your home can be picked. Even if it can't be quickly picked, burglars have been known to break down walls and haul away steel safes in their trucks.
I use Abus locks, but nothing is better than a good guard dog. Cairo is one of the most famous dogs in the world. No Ordinary Dog, and a real hero. Too bad the best dogs are owned by the military, and only given to select people.