# Invalid index name \[\_security\], must not start with '\_', '-', or '+'

**URL:** <https://discuss.elastic.co/t/invalid-index-name-security-must-not-start-with-or/253448>\
**Category:** Elasticsearch\
**Created:** [October 27, 2020, 2:15pm UTC](https://discuss.elastic.co/t/invalid-index-name-security-must-not-start-with-or/253448 "2020-10-27T14:15:51Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![ikakavas](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ikakavas/32/34430_2.png) [@ikakavas](https://discuss.elastic.co/u/ikakavas)\
**Post date:** [October 27, 2020, 3:24pm UTC](https://discuss.elastic.co/t/invalid-index-name-security-must-not-start-with-or/253448/4 "2020-10-27T15:24:23Z")

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Also, in 6.3, the API endpoint was different : [https://www.elastic.co/guide/en/elasticsearch/reference/6.3/security-api-put-user.html](https://www.elastic.co/guide/en/elasticsearch/reference/6.3/security-api-put-user.html)

But as @dadoonet said, do update to a recent version please

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_[View the full topic](https://discuss.elastic.co/t/invalid-index-name-security-must-not-start-with-or/253448)._