[GekkePrutser]

> From another perspective (perhaps not popular here): How does allowing access to restaurant websites help the bottom line? What is the risk? One malware outbreak can be enormously damaging.

Just visiting a website shouldn't be a major risk. Any code injection exploits can be mitigated in the proxy (those MITM proxies are not just for logging!). And proper patching.

Really if you run browsers so old that they can be exploited in this way you have a bigger problem than banning unknown websites solves.