Web Servers

• The World Wide Web Consortium (WWW3) recommends the program Internet Security Scanner for both Unix and Windows NT networks. Internet Security Scanner monitors server activity and logs activity that might be suspicious.
  
  

LANs

• A local area network is a group of connected computers within a single, confined area. When a LAN is connected to the Internet, all computers that comprise the LAN become vulnerable. Various programs exist to help LAN managers minimize these risks; for example, Advanced LAN Scanner monitors LAN activity, IP addresses, open ports and shared folders.
  
  

Browsers

• Simply surfing the Web can get you into trouble if your computer is not protected by individual Internet scanning software such as McAfee and Windows Defender. These programs continually scan your computer's drives and memory for malware and viruses.