fake numbers you created; You can use third-party api developer applications such as PayPal Sandbox, Apple ID, Netflix, Amazon, Ebay for testing and verification purposes on the software development side of Android, IOS and other online payment services. Also, sometimes when registering on a site, you can try to use it on untrustworthy pages that require your credit card information, even if you do not purchase products or start a paid subscription. That way, you won't give your real information. How Luhn algorithm validation works?
This algorithm was produced by scientist Hans Peter Luhn and is also known as the "mode 10 algorithm".
All credit card numbers in the world are produced according to an algorithm. Many numbers, such as the phone IMEI Number and the Canadian Social Security Number, are generated in a similar manner.
Of course, a lot of information is needed about the a
credit card payment and this information can only be learned from the bank's server via API. For example, the customer's credit card number may be valid according to mode 10, but the person's current spending limit may have been exhausted or their bank account may have been blocked. Therefore, it is not correct to use this algorithm in stages such as an online shopping transaction that requires 100% approval.
The operating principle of the Luhn algorithm is as follows;
As an example we have a card number: 4417-1234-5678-9113
The numbers in the double digits are added up.
For numbers 4, 7, 2, 4, 6, 8, 1, 3;
4 + 7 + 2 + 4 + 6 + 8 + 1 + 3 = 35
The numbers in the single digits are multiplied by 2 and the digits of the obtained numbers are added up.
If we multiply the numbers 4, 1, 1, 3, 5, 7, 9, 1 by 2, we get the numbers 8, 2, 2, 6, 10, 14, 18, 2, respectively.
If we add the numbers in the digits of the numbers we have obtained;
8 + 2 + 2 + 6 + 1 + 0 + 1 + 4 + 1 + 8 + 2 = 35
The two total results calculated are added together with each other. If the number obtained is a multiple of 10, in other words, if MOD10 is equal to 0 (zero) with the program language, this credit card number is a valid number.
35 + 35 = 70 (it is a valid number because it is a multiple of 10)
Tips for you: "How to ensure my vcc security?"
It is very important for us to ensure the security of our debit, salary and credit cards, which are an indispensable tool of our daily life and replace cash. What are the easiest ways to protect the cards we use in ATMs, POS devices, online shopping, etc.?
How Do I Protect My Password?
The key to your house is the password to your money!. Therefore, you should set passwords that cannot be easily guessed. Stay away from passwords such as birth date, date of set up of your team. You should not show anybody when entering your password to ATM and POS devices and you should also pay attention to ATM fraud (camera systems).
When creating your password for online transactions, it is useful to specify both letters and digits.
ATM swallowed my card, What Should I Do?
You must call the call center of the relevant bank and close the card to use before leaving the cash machine. In the meantime, we recommend that you stay closed to outside offers because there is no one who can help other than the bank staff.
What should I pay attention to when entering my cc information on the Internet & online shopping?
You should make sure that the site receives your information such as "https://myfree.app" from a "https" linked page. There should also be a security certificate. Shop from well-known and reliable sites. Keep your phone and computer software up to date. Do not share your information by e-mail.
What is the safest way to shop from the Internet?
The best way to shop online is to use a virtual card method. In this way, you only spend as much as you load. You can also follow your expenses on the main card.
You can also activate the 3D payment option. This means that an extra security step is added to your mobile phone with a validation code. Payment will not take place unless you enter the code in your phone. You can contact your bank for this option.
Finally, make sure that the application you are downloading to your smartphone is the application of the official resource. For example, when downloading myfree.app card's application, you should also review the application details and make sure there is no fake software. The information about your accounts and cards may cause serious harm to you.
If you think your password or information has been stolen, you should contact your bank immediately and then initiate legal action if necessary.
The easiest measure is to change the passwords at certain intervals and only to shop from the secure network.
Disclaimer for Our App
All virtual numbers, personal information, address information, postal code, mail and all other information created here are not real, they are completely randomly generated by software! It is not used in any real transaction. Responsibility belongs to the user.