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Card testing continuously happened in retail world and this advanced operation is normally been used by the fraudsters to identify whether the card can be credited or not. Usually, the fraudster would test the card details specially in non-profit organisations such as charity or the small value merchandises.

 

Here’s what online merchant or NGO should do to prevent card testing on their sites.

1.Set Transaction Limit

Add limit on how many transactions allowed daily from a single IP address

2. Stop Bot or Botnet Attack

Use tools like CAPTCHA to stop bot from completing the transactions

3.Blocked IP Address 

If certain IP addresses have many transaction decline, add it to the black list and ban them from future purchase.

 

The ecommerce frauds are constantly evoking and to avoid becoming the next victim, please check our payment fraud guide. Contact us if you would like to get a customised advice on how to combat the card testing attack.