# How to Mask Card Number

**URL:** <https://discuss.elastic.co/t/how-to-mask-card-number/322914>\
**Category:** Elasticsearch\
**Created:** [January 11, 2023, 11:09am UTC](https://discuss.elastic.co/t/how-to-mask-card-number/322914 "2023-01-11T11:09:15Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [January 11, 2023, 9:55pm UTC](https://discuss.elastic.co/t/how-to-mask-card-number/322914/3 "2023-01-11T21:55:35Z")

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Please don't post the same question more than once - [How to mask card number of xml message](https://discuss.elastic.co/t/how-to-mask-card-number-of-xml-message/322925)

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