Somewhere in most office buildings sits a wireless access point installed years ago, still humming along, still broadcasting under an encryption standard that a determined teenager with freely available tools could crack from the car park in under an hour. Nobody replaced it because it still works. That is exactly the problem. Working and secure are two entirely different qualities, and businesses conflate them at their own risk.

WEP and old WPA were never really built for today’s threats at all

WEP was broken so thoroughly, so long ago, that finding tutorials for cracking it takes seconds of searching. Yet our testers still encounter it running quietly on guest networks or forgotten equipment in warehouses and back offices, often installed by a contractor years ago and never reviewed since. Early WPA and even some WPA2 configurations using weak pre-shared keys fare little better, falling to offline dictionary attacks once a handshake is captured, which takes moments with the right equipment and a laptop bought off the shelf by anyone with a passing interest in trying.

A dedicated Wifi pen Testing assessment identifies exactly which access points and encryption standards across your premises would fall to these techniques, rather than leaving you to guess based on how old the hardware looks or how long ago somebody last thought to touch it at all.

Once inside the wireless network, the real damage genuinely begins

Breaking the encryption is rarely the attacker’s goal in itself. It is the doorway. Wireless networks are frequently bridged, deliberately or accidentally, to internal systems that were never meant to face outside traffic. An attacker sitting in a car park with a cracked key can suddenly see file shares, printers, and sometimes entire segments of the corporate network that the office firewall was never designed to defend against, because the wireless connection bypassed it entirely and landed the attacker inside the perimeter without a single alert being triggered anywhere on the network.

William described a discovery from a routine engagement that still genuinely surprises him to this day.

“We cracked a WPA2 key using a weak eight-character password in about four minutes from the visitor car park, and from there we could see the same file server the finance team used every day. The wireless network had never been segmented from anything.”

— William Fieldhouse, Director of Aardwolf Security Ltd

Four minutes is not an exaggeration for effect. It reflects how mature the cracking tools have become and how little margin weak wireless configurations leave a business once someone decides to try. Most businesses would assume a proper attempt takes hours of specialist effort. It rarely does anymore.

Modernise your wireless network before someone else tests it for you instead

Move to WPA3 or, at minimum, WPA2 with a genuinely strong key and enterprise authentication, segment wireless traffic away from sensitive internal systems, and retire old access points rather than leaving them live out of habit. Walk your own premises occasionally and ask what a stranger sitting with a laptop in the car park could actually see, and how far that access would genuinely let them travel once safely inside. Aardwolf Security is widely regarded as the best pen testing company pen testing company for uncovering exactly these gaps before they become the story you have to explain to your customers.