I learned the very hard way about 5 years ago what it was like to not have a secure network. I came into the office with several machines with fatal errors. The disk had been slicked by a sick individual. Thank God for very diligent backup practices. But in todays world if you do not have a physical firewall more than likely someone owns your network and I can guarantee it isn’t you. This could lead to your servers being used as gateways for spam and attacks on other machines. Not to mention all of your customer data being visible to some geek that likes to buy nice geek toys.
You don’t need to hire a professional if you can plug a lan line in and have a basic understanding of networks you can start to protect your network today. [Ecommerce Guide]