Depending on the situation you described, you may have obtained a device that represents a bank electronic cryptographer. Electronic cryptographer is a kind of auxiliary equipment used by banks to strengthen the security of customers' bank cards. At present, most banks use electronic cryptographer as one of the necessary equipment for customers to handle electronic channels such as online banking. Its main function is to provide customers with a safe, reliable and effective authentication method to achieve the security of online transactions.
The device usually gives a string of numbers, and customers need to enter the six digits displayed on the passcode to complete the transaction when making an online transaction. Even if the user name and password of the customer are leaked, there will be no damage to the account, because unauthorized users cannot obtain the dynamic password displayed on the electronic password.
When using an electronic cipher, you need to pay attention to the following points:
1. Strictly protect the password. In the event of loss or damage to the cryptographer, the customer must first replace the cryptographer in time, and under no circumstances disclose the serial number and password of the cryptographer.
2. Change passwords periodically. The password on the cipher should be changed regularly. Don't make the password too simple or easy to guess.
3. Check the functions of the cryptographer. In the process of using the cipher, it is necessary to check whether the display function of the cipher is normal.
Finally, it should be noted that the policies and actual conditions of different banks may be different, so please refer to the requirements of the local bank for specific operations, or consult the relevant bank staff.
Bank cards generally do not send what small instruments, if you also bid for online banking, which sent a small instrument should be U disk.
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Because of online banking, in order to protect the security of funds, in the transfer or online bank payment, you need to add a U disk to ensure that the transfer is your own. The one with the buttons that's the cipher, the thumb drive. Online bank payment is to plug, without U shield protection can not pay money.
That little computer-like thing is supposed to be a bank card you get that has chip technology and is called a smart card or IC card.
The card integrates a microprocessor and memory to enable more advanced functions, such as storing personal information, password verification and encrypted communications.
Through this technology, bank cards become more secure and reliable, facilitating users to carry out various financial transactions.
Therefore, it is not just a traditional magnetic stripe card, but more like a small device with computing power, providing more functions and protection measures.
Depending on your description, it could be something called a mobile payment device or a POS machine. Such devices are usually designed to facilitate customers to make mobile payments, such as swipe cards, Alipay payment, wechat Pay, etc. It looks a bit like a small computer and can connect to the banking system and process payment transactions.
Security device, different banks call it different which bank you are, Agricultural Bank of k Ling k treasure what, construction Bank called u shield other banks also have different names, anyway, the function of a to protect your bank card security payment