If you have sustained access to any lock (and have the skills/tooling) it's only a matter of time. It will only slow down a determined attacker. It's entirely p

If you have sustained access to any lock (and have the skills/tooling) it's only a matter of time. It will only slow down a determined attacker. It's entirely plausible there is no lock that could defeat him. That said, a good security system will have multiple (nested) zones and multiple controls to defeat in each zone - picking a lock by itself should not be enough to gain access, and you should not be able to get to the lock to begin with without being spotted or setting off alarms and triggering a police response.