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A cable stays inside your building. A radio signal does not. Anyone within range can listen to it, try to join it, or interfere with it. That is why wireless security is never one setting: it works in layers, and each layer closes a different door.
The five layers at a glance
1. Who can connect
On Wi-Fi: individual logins for staff (WPA3-Enterprise); a separate login or portal for guests.
On a fixed wireless link: only approved subscriber radios may register to the base station.
2. Data in the air
On Wi-Fi: WPA3 encryption; retire old WEP and WPA settings.
On a fixed wireless link: AES link encryption switched on for every PtP and PtMP link.
3. Keeping traffic apart
On Wi-Fi: separate networks (VLANs) for staff, guests and devices.
On a fixed wireless link: separate VLANs per service, with management traffic on its own.
4. Protecting the controls
On Wi-Fi: change default passwords, use secure (HTTPS/SSH) access, keep firmware updated.
On a fixed wireless link: the same, and never expose radio management to the internet.
5. Physical and radio
On Wi-Fi: detect rogue access points and unusual activity.
On a fixed wireless link: lock tower and rooftop access; watch signal levels for jamming or interference.
Three quick wins for this week
Change every default password on access points, controllers and radios, and update their firmware.
Check your encryption: WPA3 (or at least WPA2) on Wi-Fi, and link encryption on every fixed wireless link.
Separate your guests: visitors should never share a network with your staff or your equipment.
How WH-CONSULT CANADA can help
Since 2009 we have designed and supervised wireless networks and trained engineering teams in more than 20 countries across the Middle East, Africa, Europe, Asia and the Americas, covering Wi-Fi, fixed wireless, microwave, mmWave, CBRS and 5G.
Onsite training for your team, delivered at your location and tailored to your network.
Remote consulting for design, implementation, security review and supervision of your wireless project, anywhere in the world.
Want a security check of your wireless network? Explore our training catalog or contact us.
