One chestnut from my history in lottery game development:
While our security staff was incredibly tight and did a generally good job, oftentimes levels of paranoia were off the charts.
Once they went around hot gluing shut all of the “unnecessary” USB ports in our PCs under the premise of mitigating data theft via thumb drive, while ignoring that we were all Internet-connected and VPNs are a thing, also that every machine had a RW optical drive.
This is done to keep employees from sticking in unknown thumb drives that could install malware. Several critical systems on protected networks have been hacked in the past by leveraging human curiosity and placing a compromised thumb drive on the ground in the companies parking lot. Gluing shut the USB ports is a simple defense against that.