Guest Wi-Fi and Cyber Security

Best Practices for Guest Wi-Fi

Cyber Security Tip

Does your company provide Guest Wi-Fi for visitors, vendors, consultants, or others? If so, how secure are you from prying eyes on your corporate network?


You might be surprised to learn – not very.

Many of the companies we visit provide wi-fi access for visitors. Very convenient and thoughtful. However, often not safe.


For enhanced cyber security, we strongly recommend that companies segregate their public Wi-Fi from the corporate network.


Users often ask ‘if we have a strong password on the wireless network, isn’t that sufficient protection? In short, no. Requiring a password for access is a great first step. However, not sufficient to protect your corporate data and secrets.

In our Cyber Security Assessments, we frequently find the wireless network to be a major vulnerability. Often, relatively easy to attack –even for novice hackers within range.


Summary: How To Safely Set Up Guest Wi-Fi

If your Wi-Fi network and your corporate network share the same router, you are at risk. To close the vulnerability, we recommend that your IT team configure a separate router for guest Wi-Fi.


Details: How to Safely Set Up Guest Wi-Fi

In most cases, the Internet Service Provider (ISP) will supply five fixed IP addresses. We suggest using one IP address for the Corporate firewall/router and a separate IP address for the guest firewall/network.


Fixed IP

If you have only one Fixed IP address that is not ideal. However, there are workarounds toenhance your IT cyber security.


For example, you can use a more sophisticated Wi-Fi device (such as Meraki from Cisco). This device allows you to route the Guest Wi-Fi traffic into a VLAN or ‘Virtual Lan’, to segregate the Wi-Fi traffic from the corporate LAN.


For Wi-Fi security outside your office or home office, we strongly recommend that you avoid public Wi-Fi.

For additional details, see our blog article



Protect your systems, data, and corporate secrets by segregating your corporate network from your wireless network.


If you have a question about Wi-Fi or cyber security on your network, contact MBSG for a no charge consultation.


Note:  MBSG cyber security experts can assess your corporate infrastructure for risks and vulnerabilities and how to improve defenses. MBSG provides business owners and managers an independent, second opinion, to protect their company.