1. You can't turn shovelware into reliable software by patching it a whole lot.
2.You shouldn't mix production systems with non-production systems.
3. You actually have to know what's going on in your networks.
4. If you run your computers with an open execution runtime model you'll always get viruses, spyware and Trojan horses.
5. You can pass laws about locking barn doors after horses have left, but it won't put the horses back in the barn.
6.Security has to be designed in, as part of a system plan for reliability, rather than bolted on afterward.