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Magriffin RFID Blocking Card

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A glamorous 1950s pin-up style character with voluminous blonde curls and bold red lips, wearing a strapless red dress, holds a black wallet in one hand while displaying a card with a shield logo, set against a soft watercolor background featuring a shadowy figure of a person with a phone.
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John We got an interesting tip. This kind of reflects some elements of the show, and it’s not a bad idea. This is the Magriffin (which is the Amazon Choice, by the way) RFID blocking card. Now, this card — you get three of them for $15 — you can use them here and there. It’s a credit card-sized card that’s super thin. It has RFID circuitry in it that will blow out anybody that tries to capture your RFID information and then use it.

Adam Do we know if anyone has really successfully done this with RFID?

John I think there’s evidence that people have successfully done this, but it’s nice to have it anyway. And it also will block for four inches either way from where the card is — so it’ll block an entire wallet — and it will also block a passport. So the same RFID frequency the passport uses.

Adam That’s interesting.

John So you put it in your wallet. Or your purse.

Adam Now, do you put it on the bottom or the top, or does it not matter?

John If it’s in a wallet, it should be in the middle somewhere, so it blocks everything. And the people who sell these things — there’s about 20 companies that sell them, and they can be as expensive as $35.

Adam That seems too much.

John But they say that wallets that have the protective shields inside fail — they don’t work all the time. This card supposedly is the way to go because it’s got electronics in it.

Adam Wasn’t Sir Gene selling something like this at some point? He was selling like an EMP proof thing or something.

John Well, yeah, that was a Faraday cage. You can buy little sheaths to stick cards in, and that works.

Adam How about just using cash? They can’t lift your cash. Just use cash. Cash is the way to go.

John I’m not going to argue with that, but people do have credit cards.

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