Paying by simply bringing the card close to the terminal, without touching it, is convenient, but many doubt its safety. The question "Can someone steal my money while my card is in my pocket?" is asked often. In this article we explain how contactless payment works, separate the real risks from the myths, and explain how to protect yourself.
How does contactless payment work?
Contactless payment is based on NFC (Near Field Communication) technology. There is a small chip and antenna inside the card or phone; when brought within 3–4 centimeters of the terminal, this chip transmits the payment data by a short-range radio signal. Since the connection is established only within a few centimeters, for the payment to happen the card must actually touch the terminal or come very close to it.
What matters is that the chip does not give the terminal your card number directly "in plain text." For each transaction a dynamic, one-time cryptographic code is generated, and only this code is transmitted. Even if this code is intercepted, it cannot be used a second time.
Tokenization: the true protective mechanism
When you pay with your phone (Apple Pay, Google Pay), your real card number never reaches the store or the terminal. Instead, a "token" stored on your device — a unique set of digits that represents the card but is not itself the card number — is used. Even if the store's system is hacked, the stolen token will not work elsewhere, because it is tied to a specific device.
What are the real risks?
The main weak point of contactless payment is the amount limit. In many countries, payment up to a certain amount does not require a PIN. If your card is stolen, the thief can make several small payments within this limit. This is not large-scale theft, but it is a real risk.
- Lost or stolen card: small PIN-free payments within the limit are possible.
- Fake terminal: in rare cases a fraudster may try to read from close by, but the one-time code system makes this useless in practice.
- Social engineering: the real danger is not the technology but fraudsters who deceive you by phone or message to obtain information.
Very common myths
On the internet there are frightening claims that "a passer-by can withdraw money from the card in your pocket with a phone." In practice this is almost impossible. Every payment must pass through the bank's confirmation, and the terminal must be registered with the bank; "bringing a phone close on the street to steal money" is not a real scenario. Likewise, "emptying your entire account with one tap" is false — the limit and confirmation mechanisms prevent it.
How should you protect yourself?
- Enable SMS notifications. Being informed of every transaction immediately is the fastest defense.
- Adjust the limits. Many bank apps let you lower the contactless limit or turn the feature off entirely.
- Block the card as soon as you lose it. From the mobile app it is possible to freeze the card in a few seconds.
- Prefer paying with the phone. Biometric confirmation adds an extra layer of protection.
- Do not trust unknown messages and calls. The bank will never ask for a PIN or confirmation code over the phone.
Physical card or phone — which is safer?
| Feature | Physical card | Phone (NFC) |
|---|---|---|
| Is the real card number transmitted? | Tokenized, not exposed | No, a token is used |
| Confirmation on each payment | PIN-free up to the limit | Biometric confirmation required |
| Risk when lost | Payment possible within the limit | Does not work while locked |
| Blocking speed | Fast from the app | App + device lock |
Conclusion
Used correctly, contactless payment is safe: one-time codes, tokenization, and biometric confirmation keep it on par with traditional payment. The real risk is not in the technology but in carelessness and in trusting fraudsters. Keep SMS notifications active, block the card immediately when you lose it, and take a look at our bank cards page to compare security features when choosing your payment methods.
