Blocking RFID

[[Tycho?]]

In case you havn't heard, RFID tags (like the anti-theft devices that are in most CD/DVD cases) have been getting a fair amount of press lately, and many people are concerned about privacy, namely that RFID tags in products could be used to trace what sort of things a person buys, or can be used to trace the person themselves etc etc.

 

Basically I am wondering how one would block and RFID chip. I was thinking that just having a faraday cage around it would block it, as that would at least block the radio waves. However I only have a vague idea of how RFID chips work, and some might use magnetic fields instead of radio waves (I have no idea). So would a faraday cage do it, or is something else needed?

[insane_alien]

tinfoil. usually not in hat form unless you believe that They are watching us with sattelites that can read our minds

[MetaFrizzics]

Electromagnetic pulses could scramble or damage FET circuits.

[beautyundone]

tinfoil. usually not in hat form unless you believe that They are watching us with sattelites that can read our minds

 

they really are doing that, you know. how else do you think they get statistics?

[insane_alien]

ahh yes metafrizzics a favourite method of mine.

Take 1 large chunky magnet/electromagnet

put it on the chip and wiggle about to induce currents

the currents destroy the chip.

[5614]

A magnet from a hard drive would be a very suitable size and power... be careful when carrying them, for example I carried one walking onto a bus and my pocked stuck to one of the metal bars you are meant to hold on to!

[MetaFrizzics]

ahh yes metafrizzics a favourite method of mine.

Take 1 large chunky magnet/electromagnet

put it on the chip and wiggle about to induce currents

the currents destroy the chip.

 

"Oh Ace' date=' you make me laugh!" (When Nature Calls)

 

[ bubble me this: ']

"I can tell by the urine stain on your pants,

that you're a single-shake man.

Far too busy for the follow-up jiggle."

[ / bubble me tender ]