Your credit card has a 3-digit or 4-digit security code, known as the CVV (Card Verification Value). This small but powerful number plays a crucial role in securing your transactions and preventing fraud. Let’s dive into what CVV is and why it’s important.
What is a CVV Number?
- The CVV is a 3- or 4-digit security code on your credit card.
- Visa, RuPay, MasterCard, and Discover cards have a 3-digit CVV (found on the back).
- Some international credit cards (like Amex) use a 4-digit CVV (found on the front).
How Does CVV Protect Your Card?
- Unlike your card number and expiry date, the CVV is not stored by merchants.
- Even if a merchant’s database is hacked, your CVV remains safe.
- For online transactions, entering your CVV followed by an OTP adds an extra layer of security.
How is CVV Generated?
Banks generate CVVs using unique algorithms based on:
- Card Number (PAN)
- Expiry Date
- Service Code
- Encrypted Security Keys
These factors ensure each CVV is unique and enhances security.
CVV vs. PIN – What’s the Difference?
- CVV: Used for online transactions, ensures security for card-not-present transactions.
- PIN: Used for ATM withdrawals and POS purchases in physical stores.
Tips to Keep Your CVV Secure
- Install Antivirus Software – Protect against malware & keyloggers.
- Secure Your Wi-Fi – Set a strong password to prevent unauthorized access.
- Use Trusted Websites – Only enter card details on HTTPS sites.
- Avoid Public Wi-Fi – If needed, use a VPN for added security.
- Never Share Card Pictures – Avoid posting or sharing credit card images.
- Beware of Phishing Scams – Never share CVV/OTP via email, SMS, or calls.
- Monitor Transactions Regularly – Report unauthorized transactions immediately.