7 PCI DSS Top Methods to Protect Cardholder Data

In this post, I have given the steps card-processor should take while processing Credit card transactions.


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  1. All the cardholder data must be kept only a certain time. After that, the data should be purged.
  2. Discard all sensitive authentication data after the transaction is successful or processed. Only issuers can save sensitive data for business reasons in a Secured server.
  3. Must mask all PAN (credit card account number). It should not be visible to the public.
  4. Need to make the PAN unreadable.
  5. A procedure is required to protect cardholder data. Ex: Encryption or Decryption.
  6. Document and implement key management processes.
  7. All security policies should be documented.

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Author: Srini

Experienced software developer. Skills in Development, Coding, Testing and Debugging. Good Data analytic skills (Data Warehousing and BI). Also skills in Mainframe.