3 Wi-Fi Security Myths It’s Time to Debunk

<-- Back to Excalibur Technology Blog home

In today’s world of ultra-available information, it’s easy to come across “tips and tricks” for networking online that aren’t actually best practice. Here are a few myths to which you and your company may have fallen prey.

Myth Number One: Enable MAC address filtering.

A MAC (Media Access Control) address is a string of letters and numbers separated by colons, such as: 00:02:A1:D1: 3D: 14. A MAC address identifies every device on your network, and networked devices using this address as identification when sending or receiving data across a network. There’s a nasty rumor going around that you can safeguard your network and prevent unwanted devices from joining it by creating a filter on our router that only allows specific MAC addresses. The fact is, however, hackers using wireless network analyzers can see the MAC addresses of the computers you’ve allowed on your network, and can easily create a new MAC address to make their needs—and hack your network. A unique MAC isn’t all it’s cracked up to be.

Myth Number Two: Limit your router’s IP address pool.

Every device on your network must also be identified by a unique Internet Protocol (IP) address. This router-assigned IP address will contain a string of digits such as: Your router will use its Dynamic Host Control Protocol (DHCP) server to assign and send a unique IP address to every device joining the network, unlike the MAC address, which the device sends directly to the router.

According to one tech myth that’s been floating around for a while, you can control the number of devices that can join your network by limiting the pool of IP addresses your router can draw—a range from to, for instance. This is simply untrue.

Myth Number Three: Small networks are difficult to penetrate.

This myth suggests that reducing your wireless router’s transmission power will make it more difficult for an individual outside of your company to sneak onto your network because they won’t be able to detect it. This is untrue. Anyone intent on “breaking into” your wireless network has the ability to utilize a large antenna to pick up your router’s signals. Reducing the router’s transmission power will only reduce its range and effectiveness for valid users.

If you have taken these myths as true, don’t worry. It’s never too late to turn things around in the networking world. If you’re having issues simply looking for a new solution for your network, visit us on the web at www.excaliburis.com or contact us at info@excaliburis.com.