Made-in-Japan Wi-Fi blocking paint

Juniper Foo | Jan 29, 2009

While this sounds most unneighborly, since it means your nosy-parker neighbors can't piggyback off your wireless connection anytime, the Japanese haven't done this just to up their rep for wacky innovations. For the price of a can of house paint, this may very well be one of the most cost-effective way to secure your office wireless network against hackers and freeloaders, particularly in a time of thrift.

How this works is researchers at the University of Tokyo have blended paint with aluminium-iron oxide which has been found to resonate at the same frequencies used by Wi-Fi, thus cancelling out any electromagnetic waves in that frequency. Which sounds like really cool Minority Report stuff. Of course, it's only bound to attract the attention of every hackers out there who can't resist a challenge.

Via New Launches

Filed under: Gadgets, PC & Peripherals
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mrpanand

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mrpanand says...
Have to wait and see whether this wifi paint would interfere with other signals such as handphone, radio etc..

Jan 29, 2009 15:47

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Devlin

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Devlin says...
So where do you paint? The outside or inside of your house?

This is how I understand it works:
1. Paint walls of room with the router.
2. Router transmits radio waves the broadcasts an internet connection.
3. Paint blocks radio waves.
4. Devices in other parts of the house can't use the connection because of the "dead spot."

Now I don't know how this will change things if you paint all the interior walls. Or maybe it should only be used on the outside to shield everything inside?

Jan 29, 2009 16:45

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mintimage

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mintimage says...
Sounds great for securing offices expect for one thing...... windows/glass.
Unless of course it's transparent! Now that would be really cool!

Feb 06, 2009 11:32

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