A PIN is a code generated by the user and is used for authentication when a user tries to access a system. Its sole goal is to increase security in online and electronic transactions. The most common usage of PINs is in ATM, internet transactions, computer access logging in to a website, etc.
What Does PIN Stand For?
PIN stands for Personal Identification Number. It is a secure numerical code created by the user and used for authentication when the user tries to access a system. For various types of systems and networks such as computer networks, mobile phones, etc. The PIN is used as a validation tool.
History of PIN
The PIN was initiated with the introduction of the automated teller machine (ATM) in 1967 which was expected to be an efficient way for banks to dispense cash to their customers. Mohamed M. Atalla invented the first PIN-based hardware security module dubbed the "Atalla Box" which is a security system that encrypted PIN and ATM messages and protected offline devices with a PIN-generating key which was hard to guess.
Characteristics of PIN
- When a user tries to get access to a system using a PIN, then the PIN provided by the user is verified by comparing it with the PIN that is stored in the system database for that particular user. After successfully verifying the PIN, the user is granted access to that particular system. However, a PIN does not personally identify the user.
- Typically PINs are short strings of digits. Usually, they range from four to twelve digits. But this scheme is not that secure, so additional constraints or measures are taken for proper security like if more than a pre-specified number of incorrect PINs are attempted by an adversary (or the user himself), then the physical device should be invalidated.
Tips to Create a Strong PIN
- Try to make it longer generally 8 digits long or more.
- Never use the same PIN for multiple accounts.
- Never use guessable patterns like 1234, 5678 etc.
- Never use number combinations like your birthdate, phone number etc. that can be easily guessed.
- Keep changing your PIN frequently to prevent cyber-hacks.
- Use two-factor authentication to add an extra layer of security.
Advantages of PIN
- PIN provides security to users of a system.
- In case of unauthorized access due to lost card, username or password PIN provides secure privacy management.
- PIN provides access to multiple types of network systems and websites.
Conclusion
Hence, there are no disadvantages of using a PIN as it is for the user's security. PIN generation and usage is a very crucial step in any online transaction and has to be done carefully. This is a secret code that and special care needs to be taken to ensure that it cannot be guessed or leaked. Hence, proper guidelines should be followed to create a strong PIN.