What is a Card Testing Attack?
A card testing attack, also known as a CVV dump or test card fraud, involves attempting to verify the validity of stolen credit card details without authorization.
How Does a Card Testing Attack Work?
- Cybercriminals use a batch of stolen credit card numbers.
- They attempt to use these cards online or in point-of-sale systems to test for valid expiration dates and CVV codes.
- Any card that is confirmed valid is then sold on dark web forums or marketplaces.
Preventing Card Testing Attacks
1. Implement Strong Authentication: Use multi-factor authentication to add an extra layer of security to transactions.
2. Regularly Monitor Transactions: Keep an eye on your card transactions and report any suspicious activity immediately.
3. Update Security Measures: Stay updated with the latest security technologies to detect and prevent fraud attempts.