1x authentication on your network, and/or disable all your unused switch ports. To access Cisco Feature Navigator, go to You can prevent unauthorized users from reconfiguring your switch and viewing configuration information. In this comprehensive blog, we will explore what port security is, why it. Implement 802. Why Do We Need Port Security? How Does Port Security Work? How to Apply Port Security on the Network? Why Do We Need Port Security? When unauthorized users acquire a port's MAC address. Unauthorized access to a switch can compromise the network's performance, data integrity, and confidentiality. The first and. Always use SSH or HTTPS for remote access When you use SSH or HTTPS for remote access, all data that is transmitted between the network switch and the remote device is encrypted.