# Some prebuilt security rules have missing fields

**URL:** <https://discuss.elastic.co/t/some-prebuilt-security-rules-have-missing-fields/386132>\
**Category:** Endpoint Security\
**Tags:** elastic-stack-security\
**Created:** [May 3, 2026, 10:05am UTC](https://discuss.elastic.co/t/some-prebuilt-security-rules-have-missing-fields/386132 "2026-05-03T10:05:49Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![YousefNein](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/yousefnein/32/145549_2.png) [@YousefNein](https://discuss.elastic.co/u/YousefNein)\
**Post date:** [May 3, 2026, 10:05am UTC](https://discuss.elastic.co/t/some-prebuilt-security-rules-have-missing-fields/386132/1 "2026-05-03T10:05:49Z")

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As the title suggests, some prebuilt security rules are failing due to some fields not being present in the Elastic Defend telemetry.

From this example, the rule logic has `process.command_line` , However, the file telemetry for Elastic Defend does not have `process.command_line` I saw a numerous number of rules that have the same problem

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/0/f/0f09bd73e8e92ee391b59eabc06a205bc1c76fb6.png)

My question is, should I fix it or leave it until it is fixed from your side? I also could make a pull request with a fix if that was possible.

Thank you.

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**Author:** ![leandrojmp](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/leandrojmp/32/107231_2.png) [@leandrojmp](https://discuss.elastic.co/u/leandrojmp)\
**Post date:** [May 3, 2026, 1:54pm UTC](https://discuss.elastic.co/t/some-prebuilt-security-rules-have-missing-fields/386132/2 "2026-05-03T13:54:18Z")

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I would suggest that you open an issue on the detection rules repository, listing the rules with problems.

In this repository: [GitHub - elastic/detection-rules · GitHub](https://github.com/elastic/detection-rules/)

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [May 31, 2026, 1:55pm UTC](https://discuss.elastic.co/t/some-prebuilt-security-rules-have-missing-fields/386132/3 "2026-05-31T13:55:20Z")

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