Recently, there have been rumors on the social platform that if the bank card is close to the back of the phone, the smartphone will extract the personal information in the bank card in an instant. Seeing this, some people feel insecure at once.
Is this news true or false? If it is true, is our bank card still safe? Two days ago, Xiaobian was tested.
The phone instantly reads the bank card information
According to the requirements, Xiaobian prepared the bank card and smart phone, confirmed that the mobile phone has opened the NFC function, and then put the bank card on the back of the mobile phone, the card number of the bank card (only the last four digits are displayed), the electronic cash balance, the number of uses, the identity The information such as the number of the certificate (two at the end of the beginning) is immediately displayed. Click on the "nearly ten consumption records" to see the recent consumption information.
Sure enough, as reported on the Internet, a bank card can easily extract some personal information from the bank card without having to enter a password without using professional equipment.
However, in the test, Xiaobian found that only bank cards with chips can be extracted from bank card information, and traditional magnetic stripe cards cannot be extracted.
No password or no payment
What exactly is going on?
It turns out that some of the smart phones' ability to "sit out of the air" comes from a kind of NFC short-range wireless communication technology chip that comes with the mobile phone. The NFC chip can realize convenient information transmission by means of contact.
According to the bank's staff, in order to facilitate the information inquiry of bank cards, China and many countries in the world support the application of NFC technology, but at present it only stays within the scope of the inquiry, and there will be no bank card passwords being stolen. In the case where the account amount is traded, if you want to realize the transaction, you must enter the bank card password. In other words, everyone's bank card is safe.
In addition, most of the smartphones in the market except the Apple mobile phone have NFC function, which means that most mobile phones can realize the function of sensing the bank card information. Therefore, although bank cards are still safe, for information security, everyone still needs to raise awareness of protection.
NFC actually has many uses.
As mentioned earlier, many smart phones are equipped with NFC chips, which can bring convenience to all aspects of our lives.
Data transmission: The back-to-back near-field transmission function only requires two mobile phones to be connected together to transmit data through NFC. Compared with Bluetooth, a series of matching steps are saved, which is very convenient and fast.
Public transportation: The bus card is actually an NFC chip, so the mobile phone with NFC function can also read the bus card. In some cities where public transport facilities have opened NFC payments, you can directly use the mobile phone to brush the bus, and even the cards are not used.
Mobile payment: NFC is more convenient, easier to use and more secure than a QR code. And as long as there is support for the UnionPay flash POS machine, you can simulate swiping, even in places where there is no network.
Internet of Things: The NFC feature allows mobile phones to connect to other NFC-enabled products, such as a home router, which can be connected to WiFi in close proximity.
Property management: Many smartphones with NFC function also have the function of card learning. After learning the original access card, you can use the mobile phone to brush the door.
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