Jane Smith is responsible for security at the ABC Company. She has a moderate budget with which to purchase security solutions. To date, she has installed a router-based firewall between the network and the outside world. She also has a commercial virus scanner on every machine on the network.
What other actions might you recommend to her? Would you recommend a different firewall? Why or why not? Would you recommend an Intrusion Detection System, and if so, where would you recommend she place it?