Slightly off topic, but I think bike thieves are becoming more and more professional recently. Here in Berlin many now use small cordless screwdrivers with a custom gearing mechanism that operates a bolt-cutter. With that they can even cut through thick steel-bar type bike locks in a few seconds, without making any noise. I saw that in a police report lately but I can't find a link with a photo of the device now, unf…
Two (lame) lock stories below: We inherited a bike with a cable bike lock around the handlebars. The local bike shop was able to cut through it easily with bolt cutters. My truck came with a locking hitch. I recently forgot my keys and a family member pried it off with a crowbar in 10 seconds. Security theater.
That was the first (and only) time in my life I used a bolt cutter and it took me maybe 30 seconds to cut the cable. Now it would have been 10 seconds because I know where to cut.
I would not say that thi sis security theater, it is to avoid the passer-by who would steal your bike on a whim. I have no idea what percentage of thiefs this is .