One of the biggest security holes in many networks is having unsecured switch ports. This video begins with a shocking demonstration of how easy it is for a malicious user to launch a “Man-in-the-Middle” attack. Then, you see how to help prevent this type of attack by shutting down unused ports on your Ethernet switches. Shutting Down Unused Ports is a sample excerpted from Cisco CCENT ICND1 100-101 (Complete Video Course), a comprehensive, 17+ hour training course that brings Cisco CCENT exam topics to life through the use of real-world demonstrations, animations, live instruction, and configurations, making learning these foundational networking topics easy and fun.