What is a Card Validation Attack?
A card validation attack involves cybercriminals attempting to validate stolen credit card information to determine if it's active and usable. This is often done through automated systems to test multiple card numbers.
Methods Used in Card Validation Attacks
- Brute Force Attacks: These involve trying numerous combinations of card numbers and CVVs to find valid ones.
- SQL Injection: Cybercriminals inject malicious SQL code into databases to steal card information.
- Phishing: Attackers send fraudulent emails or messages to trick victims into providing their card details.
Protecting Against Card Validation Attacks
Protect yourself by using two-factor authentication, monitoring your card activity, and avoiding sharing your card information online. Use secure payment gateways and be cautious of websites offering to sell CVVs online.