Comment by implements

Yep. There’s a safe engineer on YouTube who was explaining the history of dial combination locks commonly used for government filing cabinets, etc. He pointed out that you can drill them in minutes but you’d need several hours to make good the damage such that the break in wouldn’t be easily detected. The combined time is therefore the ‘strength’ of the security. (Also, why it might be a good idea to have open sensors on safes, cabinets, etc)