03/31/2026
Installing some dimmer switches, an exterior roller solar shade, and a ceiling fan today are all routine tasks that I perform quite often. Drilling holes in flower pots and bumping a lock for a different client are not tasks that I perform often. It was the bumping of the lock that I wanted to mention (again, I wrote about it a few years ago).
Lock bumping is a technique that uses a key with that has all of the biting and cuts are at the same height and depth with something like a castration band near the shoulder end of the key. Once the correct key profile is determined, the key is inserted in the lock with the band. While gently turning the key and tapping on the head of the key at the same time, if the key turns the lock can be bumped (ie. unlocked). Most of the time, a bumped lock shows no signs of forced entry.
I used to do a lot more rental property work than I do now, which is how I ended up having these keys. It has probably been at least three years since I used them last. It took me a moment to setup for the lock today, but once I had everything right, it took just a couple of taps to bump this lock. In the past, I have been able to bump some locks in less than 5-seconds.
So why am I writing all of this? Well, once I learned about lock bumping, I tested the technique out on my home. I was in the front door in less than 10-seconds. What action did I take next? I changed all of the locks in our home to ones that can't be bumped. I tried bumping the new locks and I couldn't.
I know that in most cases, if someone wants into your home, they'll find a way. I just think that it is a good idea to not make it easy enough for an amateur, like me, to overcome a lock in seconds using keys purchased on the internet.