Protect NFC Cards

How To Protect NFC Cards? Is NFC Secure?

NFC cards are becoming increasingly popular as a way to store and exchange information. However, there is a downside to this convenience: NFC cards are also susceptible to being hacked. In this blog post, we’ll show you how to protect NFC cards from being hacked and what you can do if your card is hacked.

What is NFC?

NFC stands for Near Field Communication.

It is a set of standards for short-range wireless communication between devices.

NFC allows two devices, such as a smartphone and an NFC-enabled credit card, to exchange information wirelessly.

NFC cards are used for a variety of purposes, such as storing digital business cards, boarding passes, and event tickets.

Related: Best NFC Digital Business Cards

NFC-enabled credit cards can also be used to make contactless payments.

How do NFC Cards Work?

NFC cards work by sending radio signals to an NFC-enabled device, such as a smartphone.

When the two devices are in close proximity, the radio signals are used to establish a connection between the two devices.

Once the connection is established, the two devices can exchange information.

Types Of NFC Cards

The most common type of NFC cards are

  • Passive, and
  • Active

Passive NFC cards do not have their own power source and rely on the power generated by the NFC-enabled device to operate.

Active NFC cards, on the other hand, have their own power source and can initiate communication with an NFC-enabled device without having to be in close proximity.

Active NFC cards are less common than passive ones.

Is NFC Technology Secure? 

Yes and no.

While NFC technology itself is secure, the way it’s implemented in some devices can leave room for security vulnerabilities.

For example, if an NFC card is not properly encrypted, it could be read by an unauthorized device.

Additionally, some devices do not have proper security measures in place to prevent unauthorized data transfer.

What are the Risks of Using an NFC Card?

The main risk of using an NFC card is that it can be hacked.

Hackers can use special equipment to intercept the radio signals that are sent between an NFC card and an NFC-enabled device.

Once the signals have been intercepted, the hackers can gain access to the data stored on the card.

In some cases, hackers may also be able to remotely activate the card’s radio signal in order to establish a connection with an NFC-enabled device without having to be in close proximity.

This type of attack is known as an “amplification” attack.

How To Protect NFC Cards Against Potential Security Risks

There are several steps that you can take in order to protect your cards against NFC hacks. Some of them are:

1. Use Password Protection

Just like your phone, you should use a passcode to protect your NFC digital business cards. This will help to prevent thieves from accessing your card without your permission. 

Related: Best Digital Business Cards

2. Keep Your Cards Updated

It’s important to keep your NFC digital business cards up-to-date with the latest security patches. Hackers are always finding new ways to exploit vulnerabilities, so it’s important to stay one step ahead of them. 

3. Be Careful Where You Store Your Cards

You should avoid storing your NFC digital business cards in places where they can be easily accessed by hackers, such as on your computer or in cloud storage. Instead, keep them in a secure location, such as a physical safe or encrypted drive. 

4. Share Carefully

When you share your NFC smart cards with others, be careful about who you give them to and what permissions you grant them. For example, you may want to consider setting up a two-factor authentication process for authorizing card transfers. 

5. Use Encrypted NFC Cards

If possible, use encrypted NFC cards.

This will add an extra layer of security to your cards and make it more difficult for hackers to access your data. 

6. Don’t Store Highly Sensitive Information

You should avoid storing highly sensitive information on your NFC digital business cards. If a hacker is able to access your card, they may be able to view this information. 

7. Use A Secure Connection

When you’re using your NFC digital business cards, make sure that you’re using a secure connection.

This will help to prevent hackers from intercepting your data. 

Also, avoid public Wi-Fi hotspots

8. Monitor Your Cards For Suspicious Activity

You should regularly check your NFC digital business cards for suspicious activity.

If you notice anything out of the ordinary, contact your card issuer immediately. 

9. Turn Off Discovery By Other Devices When Not In Use

If you’re not using your NFC digital business cards, you should disable discovery by other devices.

This will help to prevent hackers from being able to access your card. Also known as the standby mode.

What To Do If Your NFC Card Is Hacked?

First things first, don’t panic.

While it’s certainly not a pleasant experience, there are some steps you can take to mitigate the damage and protect yourself from further fraud in NFC transactions.

The most important thing to do is to contact your bank or credit card provider immediately.

They will be able to cancel your card and issue you a new one. In the meantime, you should also keep an eye on your credit report and account activity to make sure no additional fraudulent charges have been made. 

It’s also a good idea to change any passwords or PIN numbers that may have been compromised as a result of the hack.

And finally, be sure to update your security settings on any devices or accounts that may be linked to your NFC card.

By taking these simple steps, you can help minimize the damage if your NFC card is ever hacked.

NFC Chip Security FAQs


Is NFC a security risk?

NFC is not a security risk.

Is NFC a secure protocol?

You may have heard of NFC and may even use it to make payments with your smartphone, but is NFC secure?
Despite being around for a few years now, there are still many people who are unsure about whether or not NFC is a secure protocol.
NFC is actually very secure. In fact, it’s more secure than Bluetooth because the connection between devices is encrypted.

Is it safe to pay with NFC?

Yes, it is safe to make NFC payments with your credit or debit card.

How can I protect my card from being scanned?

Avoid unauthorized or suspicious NFC terminal readers by not allowing your card to be scanned without your permission. If your card is scanner-resistant, make sure the NFC reader is turned off when you’re not using it. When traveling, keep your cards in a safe place, like a travel wallet, and don’t let anyone else handle them.
If you think your card has been compromised, report it to your bank or credit card issuer immediately and request a new card.
You should also change your PIN if you think it may have been compromised.
Review your account statements regularly to check for unauthorized transactions, and report any suspicious activity to your bank or credit card issuer as soon as possible.

How do I block my contactless cards?

To block your contactless card, you can either call your bank or go into a branch.
They will be able to block it for you and issue you with a new card.

Is the NFC tag secure?

No, NFC smart tags are not secure.
Anybody with an NFC-enabled phone can scan and read the data on an NFC tag.
They’re meant for public use like marketing and information sharing, not for sensitive data like credit card numbers or personal information.

What is the secure element validation process?

The secure element validation process is a security feature that helps protect sensitive data stored on an NFC tag or a secure element chip.
It ensures that only an authorized device can access the data on an NFC tag and that the data is encrypted so that it can’t be read by an unauthorized NFC device.



NFC technology is secure, but the way it’s implemented in some devices can leave room for security vulnerabilities.

To protect your NFC card from being read by an unauthorized device, make sure your physical card is properly encrypted and only allow authorized personnel to handle it.

You should also use a PIN or password to protect your device from data theft and keep your software up to date to ensure you have the latest security patches in order to protect NFC cards.

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