RFID-blocking debit card holder

facade

molerat said:

matelodave said:

I tried my car keys inside an RFID pouch inside a biscuit tin and I could still open the car door if I held it close enough. The pouch on its own was useless.

 I'd guess that a good old Golden Virginia tobacco tin would be better than some of these so call Faraday pouches and card holders

My car would not unlock or start with the key in a pouch, even resting the pouch on the contact pad didn't work.

I got a small toffee tin, and soldered some flexible wire from the lid to the tin. Put my car key/dongle in it and closed the lid, stood next to the car and touched the doorhandle and infuriatingly it unlocked just the same as if the key/dongle had been in my hand.

No gaps in the tin whatsoever, seamless tin and the lid is electrically connected to the tin.

So I'm reliant on the Disklok for security, and you can pick them in a few seconds if you have the tool- if you make your living stealing cars you'd surely have the picking tool for the most popular deterrent.....

Murmansk

I carry my cards around in a microwave oven just to be sure

Vitor

I've installed Linux Mint on my car so it can't be hacked. 

forgotmyname

Vitor said:

I've installed Linux Mint on my car so it can't be hacked. 

Just remember to leave your admin password under the mat. 

PHK

Aren’t the vast majority of car keys active devices rather than RFID?

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PHK said:

Aren’t the vast majority of car keys active devices rather than RFID?

Yes, keyless keys are active. I think they do have a backup RFID component that you touch to the marked sensor on the car when the key battery is dead.

Either way they use radio waves that should be blocked by a fully enclosed conducting box/bag.

"ordinary" dumb chipped keys are a variant of RFID as there is no battery.

Later I'll try earthing my toffee tin, in case my keyless key/dongle is simply coupling to the tin as an external aerial.

spud17

facade said:

Yes, keyless keys are active. I think they do have a backup RFID component that you touch to the marked sensor on the car when the key battery is dead.

Thanks for this.
It explains why with my car, if the fob battery dies then the car can be started by placing the fob on the start button for a couple of seconds.

ballyblack

Bookowl said:

I have a RFID wallet but don’t know if it’s any good tbh. The wallet might be better than using your phone. I’d worry encase the phone got stolen and then I wouldn’t be able to cancel the cards - as everything’s connected to my phone.

The phone has only a copy of the cards. If ur phone is stolen cancel the physical card from where you store them say at home. They can't be used on phone without the phone being unlocked.

I never carry cards around with me