Reply to post: Re: Wouldn't it be cheaper...

Prisoners' 'innovative' anti-IMSI catcher defence was ... er, tinfoil

Anonymous Coward
Anonymous Coward

Re: Wouldn't it be cheaper...

The effectiveness of Faraday cages requires very detailed, careful application (many years ago I worked with TEMPEST kit). I've had my phone in biscuit tins, and in steel filing cabinets, and the thing will still have a signal and ring when a call comes in. Chicken wire's also probably too big a mesh to block a mobile phone signal, due to the ratio of the holes to the wavelength.

My solution is to lock the convicts in steel shipping containers. That wouldn't stop mobile signals - until I'd had the containers dumped at sea.

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