The CAPTCHA feature is missing in JIRA
Platform notice: Server and Data Center only. This article only applies to Atlassian products on the Server and Data Center platforms.
Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
This page show address a problem of users who are facing difficulties to Enable/Disable the CAPTCHA feature in Jira given the option does not appear.