To help prevent spammers, Jira comes with the CAPTCHA challenge response feature to make sure there is a real person signing up for a new account and not an automated bot. To enable the CAPTCHA feature, go through the following steps:
- Navigate to Administration > System > General configuration.
- Click on the Edit Settings button.
- Set the CAPTCHA on signup option to On, and click on Update.
Once you have enabled CAPTCHA, the sign-up form will include a string of randomly generated alphanumeric characters that must be typed in correctly for a new account to be generated, as shown in the following screenshot:
An example of CAPTCHA is shown in the preceding screenshot.