Technology used by credit cards and possible risks 2026

You go to any establishment and pay with a card, what could happen? Actually, there are various scams or scams that take advantage of the materials in this tool and they can annoy you. Te contamos qué tecnología usan las tarjetas de crédito y los posibles riesgos a los que te puedes encontrar.

• How to block my credit card if my wallet has been stolen

Almost everyone pays by credit card these days. It is the most convenient, you just have to take it out of your wallet and bring it close to the card machine to settle debts in any store. Precisely for this reason, There are thieves and scammers who take advantage of our ignorance. .

All credit cards take advantage of a specific technology that moves money between different bank accounts. A failure in these devices can cause you to lose everything what you have saved in your account.

Technology used by credit cards and possible risks

Credit cards are a tool that we use almost daily . They have improved a lot and now they come with technologycontactlesswhich makes payments so much easier for us.

This technology behind it also allows us to pay from the phone, thanks to Near-field communication (NFC) . At this rate, we will stop carrying many things in our wallet.

How credit cards work

Whenever we think about credit cards, the image of the classic plastic rectangle comes to mind. Eso es lo que vemos a priori, but not everything that this tool has.

inside the card a smart chip is found , which replaces the old magnetic strips. Within this piece is all the necessary information about the bank, your account, etc.

The main advantage of this chip is that it is much safer than previous methods. The card cannot be easily cloned , since all the information is encrypted and is difficult to access.

This type of chip is responsible for creating an exclusive code for each purchase or payment you make, so you cannot keep track of the information you leave every time you buy something.

Now, to this technology that we have just seen, we must add the one that allows us to make payment without inserting the card . Near-field communication (NFC) is what makes themcontactless.

In this case, the cards They take advantage of a technology that is very similar to Bluetooth that we can find on mobile phones. By bringing the two terminals closer together, they transmit information instantly.

This can be achieved thanks to some small antennas that are inside the cards and they go independently of the chip that we mentioned a moment ago. In some cases, they can work up to 10 centimeters.

Possible risks and scams with credit cards

How could it be otherwise, thieves always find a way to steal from us. With credit cards They have found different methods , some more effective than others.

For example, one of the most basic is steal the card and make small payments thanks tocontactless. Depending on the bank you have, you may have a higher or lower limit for payments of this type.

We recommend that you set a personal limitation. For example, to ask for your PIN for all charges that exceed €5 . In this way, you complicate the thief's purchases and will give you time to cancel the card.

Another of the most widespread fears is that someone brings a dataphone to the wallet and charges without us realizing it. This almost never happens, since the terminal needs to be a few centimeters away and having the card in your pocket makes it very complicated.

In these cases, a wallet with RFID protection can also come in handy. With them you can rest assured, since They will prevent any theft that they attempt when they bring a dataphone close to you. .

Lastly, we recommend that you have Be careful with the web pages where you place your card . Try to make sure they are well-known pages that use the appropriate security protocol. Always make sure that the pages where you pay have the padlock next to the URL address.

En Yoigo AlarmsWe can help you feel safer in your home. Go to our website or call900 622 398so that our experts can recommend the security systems that best suit you.

Read Next

Best bedroom hidden cameras | Best Spy Camera Watch | Best low level CO detector | Best Wifi Router EMF Protection | Best Camera for MEVO Plus | Best Security Camera Without Subscription | Best Budget Camera for Blue Iris | Best Barking Dog Alarms | Best Free VPN for Rainbet | Best Solar Powered Security Camera | Alarmes Maison