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Why we build systems the way we do

Wi-Fi cameras can be knocked out before you even know it's happening.

This isn't a sales scare tactic — it's a documented burglary method. Here's what's been reported, how it actually works, and why we don't build our systems around Wi-Fi.

A note on the cases below: the reports we could verify are from the United States, where it's been widely covered by police departments and local news. We haven't found a confirmed Australian case yet — but the technique targets the Wi-Fi radio protocol itself, which works identically here. Separately, the ACMA treats these devices as serious enough to ban outright in Australia (more on that below), which says something about how real the risk is considered to be.

Documented cases

Paraphrased from the original reporting — follow the source links for the full story.

How it actually works

It doesn't need to touch your camera at all. A jammer floods the Wi-Fi frequency your camera uses with noise, so the signal simply can't get through — the same as trying to hear someone talk in a room full of static.

The effect is total and immediate. No live view, no motion push notification, and if your camera has no local storage of its own (many wireless/cloud cameras don't), nothing gets recorded for that gap either — the footage that should have caught the intruder was never written down.

Why our systems don't have this problem

We wire it in. Our cameras connect to the NVR over a physical cable, and the NVR records straight to its own hard drive on site — not the cloud. There's no Wi-Fi signal to jam and no internet connection to interrupt in the first place.

That protects against more than just jamming — a router crash, an internet outage, or a cut cable all produce the same result on a Wi-Fi-dependent system. A wired system on site keeps recording through all of them.

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Wi-Fi jammers are illegal to own, supply or operate in Australia under the Radiocommunications Act 1992, enforced by the ACMA, with penalties of up to $1,375,000 and 5 years' imprisonment. Yarraman Security doesn't sell, own or use jamming devices of any kind — this page exists only so you have accurate information to make your own decision.