First, use encryption! If you encrypt sensitive data and passwords while in transit, you'll render packet sniffers
Encryption can be implemented in a number of ways: SSL (HTTPS) connections to Web servers, encrypted SSL or TLS connections to mail servers, or other application-specific techniques. Alternatively, you can use a virtual private network (VPN) to encrypt entire communications links, regardless of protocol.
Second, use a switched network. In this case, a packet sniffer will only be able to eavesdrop on connections taking place on its own local switch port. If you assign each system to an individual switch port, there simply won't be any packets for the packet sniffer to intercept.
Dig deeper on Network Intrusion Prevention (IPS)
Related Q&A from Mike Chapple, Enterprise Compliance
Should companies obtain U.S. security clearance to join the Enhanced Cybersecurity Services program? Mike Chapple offers his perspective.continue reading
Does a Web application security assessment termed 'compliance ready' seem too good to be true? Learn its role in an enterprise compliance program.continue reading
Learn how hiring the right PCI DSS-compliant service providers, especially payment services providers, can reduce your compliance burden.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.