MacOS sometimes asks you to accept some system extension / kext. Unfortunately it can be difficult to clarify why, which can be scary. Sometimes you will only get notified that the kext signed by XYZ has been updated, and then it's on you to find out how to relate XYZ to a specific file and functionality in your system. I have found myself in the situation a couple of times, so in case it helps others, here's my notes. BEWARE, don't take this as an excuse to assume that everything is fine in your system; instead take this as a hint that should be verified for your own case. Indeed, if you don't know why you have that driver in your system, maybe you should just remove it.
Running away from the comfort zone