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.
Zscaler is one of the worst products I’ve had the displeasure to interact with. They implemented it at my old job and it said that my home Internet connection was insecure to connect to the VPN. Cyber Sec guys couldn’t figure out the issue because the logs were SO helpful.
Took working with their support to find that it has somehow identified my nonstandard address spacing on my LAN to be insecure for some reason.
I kept my work laptop on a separate vlan for obvious reasons.