Do RFID blocking cards actually work? My Flipper Zero revealed the truth

The Flipper Zero reading the Apple Pay NFC signal from my Apple Watch Ultra.

Adrian Kingsley-Hughes/ZDNET

RFID is everywhere, even packed into your credit and debit cards, allowing the information to be read in a “contactless” fashion.

Concerns that cards could be read covertly have generated a massive industry of security devices designed to block or somehow interfere with this contactless reading of the cards. 

Also: Flipper Zero: Geeky toy or serious security tool?

You can find wallets, purses, and card protectors designed to prevent your cards from being read stealthily. But do these security devices work?

Well, I have a Flipper Zero, and this amazing device can read NFC.

So, let’s try it out.

What I’m using it to test out here are Vulkit RFID blocking cards, which are designed to protect credit cards, debit cards, and ID cards using 13.56MHz-frequency RFID from unauthorized scanning.


These credit card-sized plates are advertised to block thieves from stealing your payment information.

View at Amazon

The blocking card looks like any other credit or debit card, and doesn’t need any charging or anything. All you need to do is pop it into your wallet or purse, and it’s supposed to block RFID reading.

The Vulkit

Read more

Explore the site

More from the blog

Latest News