Blog Post

What is RFID and how can I protect my cards?

Vicky • Apr. 30, 2019

RFID (Radio-Frequency Identification) / NFC (Near Field Communication) describes the transmission of data by radio using an appropriate radio reader.

Nowadays almost all bank cards, ID cards, key cards & co. contain RFID/NFC radio chips.
These transmit the personal data stored on the card using an appropriate radio reader.


This can happen legally and intentionally when you pay a small amount of money with your debit/credit card in a supermarket, for example, by simply holding it near the card terminal. The corresponding data is then transmitted by radio to the reader so that you no longer need to insert the card.



Unfortunately, such data transmission can also be unintentional and illegal. It is easy for data thieves to obtain a radio reader and spy on foreign data without being noticed. For example, it could be that the person standing next to you at the traffic lights has such a device in their pocket and a few seconds later knows your bank card data, which they can then use to make online purchases, for example. But also all identity cards (identity card, health insurance card, blood donor card, etc.) are at risk of becoming victims of data theft.


But you don't have to panic now, because just as it is possible to transmit data via RFID/NFC, it is also possible to block this process.


This is possible, for example, with a special protective foil. I have incorporated Cryptalloy® into my card cases, which you will find
>>here<< by the way. This material is TÜV-certified and was developed especially for this purpose. Because RFID/NFC chips work on different frequencies, it is important to make sure that you have a protective cover or something similar that covers all frequencies, so you can be sure that your data is really protected. Cryptalloy® offers maximum protection on all relevant frequencies worldwide.

My cases have also been tested several times in the Cryptalloy® laboratory and have passed all tests. So if you carry your cards in a Filucry® card case, you can move around and travel in peace, because your data will also be protected abroad.


By the way, the following graphic shows the symbols that indicate an RFID/NFC radio chip. You will find the left symbol (waves) on your bank cards, for example. The right symbol is shown on identity cards and passports.

rfid wellen symbol

As all this was a lot of information at once, I have summarised the most important points again here and provided you an overview of where RFID/NFC chips can be found and what dangers can occur:

 

Through radio hackers there is the danger of:
 

  • Loss of cash balances
     
  • Unnoticed creation of behaviour/motion profiles
     
  • Car/truck/motorcycle theft
     
  • Data/identity theft by radio
     
  • Cloning of identities/documents
     
  • Unauthorised access to private and commercial rooms/garages
     
  • Electromagnetic destruction of chips / cards (EMP)
     

 

Radio chips (RFID/NFC) can be found in:

 

  • debit, credit, giro and bank cards, other payment cards


  • identity cards (credit card format), passports (since 2005), other ID cards


  • access, employee, member, hotel and blood donor cards


  • university and library cards


  • public transport tickets


  • electronic key cards for buildings and garages (private/commercial)


  • car keys (keyless) for car/truck/motorcycle


  • immobilisers


  • smartphones, mobile phones

 

The above listed cards, passports, ID cards, keys and telephones operate on different RFID/NFC radio frequencies.


To have maximum protection on all relevant frequencies worldwide, it is important to have a product (e.g. card case, wallet or similar) that blocks these radiations.


Filucry's handmade card cases are equipped with a TÜV certified Cryptalloy® foil that blocks all radiation and thus offers maximum RFID/NFC protection for ALL relevant frequencies WORLDWIDE.

The cases have been tested and certified several times in the Cryptalloy® laboratory.


All Filucry products are handmade and made in Baden-Württemberg, Germany.


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