# Masking ecs logs

**URL:** <https://discuss.elastic.co/t/masking-ecs-logs/309324>\
**Category:** Logs\
**Created:** [July 11, 2022, 1:24pm UTC](https://discuss.elastic.co/t/masking-ecs-logs/309324 "2022-07-11T13:24:28Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![chiragnighut](https://avatars.discourse-cdn.com/v4/letter/c/3e96dc/32.png) [@chiragnighut](https://discuss.elastic.co/u/chiragnighut)\
**Post date:** [July 11, 2022, 1:24pm UTC](https://discuss.elastic.co/t/masking-ecs-logs/309324/1 "2022-07-11T13:24:28Z")

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How do I mask Ecslayout based logs based on regex based logic? I am using log4j2 for logging purposes and the layout I am using is EcsLayout.

Consider following JSON object which I would be logging using log4j2 ecslayout console:

```auto
{
"id":"paymentID",
"email":"chiragnighut05@gmail.com",
"contact":"+919000000000"
}

```

Here I need to mask email and contact fields.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [August 8, 2022, 1:25pm UTC](https://discuss.elastic.co/t/masking-ecs-logs/309324/2 "2022-08-08T13:25:04Z")

</div>

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