RFID Blocking Cards
Author
Discussion

anonymous-user

Original Poster:

84 months

Thursday 21st October 2021
quotequote all
Now that the contactless card limit has been raised to £100 a go I am a little concerned about it. I have seen ads for these RFID blocking cards.

Anyone got any experience or view on how effective if at all they are? I have googled and there is little independent reporting on how well they work which might indicative of lots of snake oil.

Appreciate peoples thoughts and experiences.

joshleb

1,550 posts

174 months

Thursday 21st October 2021
quotequote all
I use one of these Secrid mini wallets, I keep 5 cards in the main section and then some other bits and bobs in it.

RFID protection for all cards in the main bit and prevents me from carrying a large wallet with me

https://secrid.com/en-gb/miniwallet-original-black


anonymous-user

Original Poster:

84 months

Thursday 21st October 2021
quotequote all
joshleb said:
I use one of these Secrid mini wallets, I keep 5 cards in the main section and then some other bits and bobs in it.

RFID protection for all cards in the main bit and prevents me from carrying a large wallet with me

https://secrid.com/en-gb/miniwallet-original-black

My initial thought with this is what happens when you sit down with it in your back pocket? Is it strong enough to sit on or does it bend and squash?

Zumbruk

7,848 posts

290 months

Thursday 21st October 2021
quotequote all

walamai

459 posts

237 months

Thursday 21st October 2021
quotequote all
You don't really need one. Just had a quick google and there's an article here which explains https://www.creditcards.com/credit-card-news/rfid-...

Essentially though, each transaction uses unique tokens, so it's not possible to 'scan' a card (or phone) and 'clone' it to then go off any make payments against your account.

The only possible 'risk' is somebody covertly using a payment terminal to swipe your card/phone (using something like an iZettle or SumUp terminal). So they'd have to get physically very close and then swipe your card as if you were paying for something.

It's not a risk worth worrying about. If you buy an RFID blocker then I guarantee you'll have 'lost' some money on that wink

ETA: With regards to being snake oil, the wallets/phone cases will actually block RFID, so they are technically doing what they claim. It's just that you don't need them in the first place.

Edited by walamai on Thursday 21st October 16:35


Edited by walamai on Thursday 21st October 16:37


Edited by walamai on Thursday 21st October 16:37

The_Jackal

4,854 posts

227 months

Thursday 21st October 2021
quotequote all
Having a wallet in your back pocket just makes you more susceptible to good old fashioned pickpocketing.
Then they will have all the time in the world to remove it from your nice new RFID protecting wallet and tap away.

Dodsy

7,175 posts

257 months

Thursday 21st October 2021
quotequote all
I looked into this , there arent any confirmed cases of anyone in the UK ever having had this happen to them. I admit i only did a quick google but you’d expect any proven cases to be top of the results.

Then i looked into RFID cases on amazon , every review i read where soneone had tested after purchase they didnt work.


babelfish

1,020 posts

237 months

Friday 22nd October 2021
quotequote all
My cards are loaded on my watch and phone.

Very rarely do I take my wallet out with me.


x5tuu

12,788 posts

217 months

Friday 22nd October 2021
quotequote all
walamai said:
You don't really need one. Just had a quick google and there's an article here which explains https://www.creditcards.com/credit-card-news/rfid-...

Essentially though, each transaction uses unique tokens, so it's not possible to 'scan' a card (or phone) and 'clone' it to then go off any make payments against your account.

The only possible 'risk' is somebody covertly using a payment terminal to swipe your card/phone (using something like an iZettle or SumUp terminal). So they'd have to get physically very close and then swipe your card as if you were paying for something.

It's not a risk worth worrying about. If you buy an RFID blocker then I guarantee you'll have 'lost' some money on that wink

ETA: With regards to being snake oil, the wallets/phone cases will actually block RFID, so they are technically doing what they claim. It's just that you don't need them in the first place.

Edited by walamai on Thursday 21st October 16:35


Edited by walamai on Thursday 21st October 16:37


Edited by walamai on Thursday 21st October 16:37
This all day long - ive tried using my cards while still in my regular non-RFID blocking wallet pushing them onto the terminal to authorise a payment and they won't so I dont even think someone flashing an izettle etc. next to you on a busy train etc. will work tbh.

AJB88

15,886 posts

201 months

Friday 22nd October 2021
quotequote all
I've had one of them blocking metal wallets for about 3 years now, simply because I only carry cards, on the odd occasion I do have cash I just put it in my pocket. My metal wallet is just metal, after 3 years it still looks great. it has a black putton at bottom you pull and the cards all slide out.

One time when entering Fenerbache stadium in Turkey, the police tried to take it off me as they thought it was a lighter.

Piginapoke

6,043 posts

215 months

Friday 22nd October 2021
quotequote all
babelfish said:
My cards are loaded on my watch and phone.

Very rarely do I take my wallet out with me.

This, all day long.

Bacon Is Proof

5,740 posts

261 months

Friday 22nd October 2021
quotequote all
I've taken contactless payments from cards in people's pockets, it is quite possible.
I also have a credit card style blocker that throws out lots of different signals preventing any one card being read which works. Having several contactless cards has the same effect.

soad

34,686 posts

206 months

Tuesday 26th October 2021
quotequote all
I have got one of these sitting in my wallet, for what must be nearly two years now.

Cropped photo, you can see just how battered it is now.


Direct link, but got it cheap when the Wuntu rewards app was still going.
https://www.risetraveler.com/products/rfid-blockin...

eliot

11,995 posts

284 months

Tuesday 26th October 2021
quotequote all
Zumbruk said:
He’s right - just been exploring an old card with a heat gun.

Bacon Is Proof

5,740 posts

261 months

Tuesday 26th October 2021
quotequote all
soad said:
I have got one of these sitting in my wallet, for what must be nearly two years now.

Cropped photo, you can see just how battered it is now.


Direct link, but got it cheap when the Wuntu rewards app was still going.
https://www.risetraveler.com/products/rfid-blockin...
All those testimonials about keeping people's cards safe, if you've got more than one card in your wallet you won't be able to read them anyway, I know; I've tried.
Some card machines will even display a "please present only one card" error message when you do.
Contactless cards seem pretty good at breaking by themselves, typically where the aerial joins the chip. You can often get a broken card to work by holding the chip against the card reader with your thumb and flexing the card so the aerial makes contact again and completes the circuit.