Enable two-factor authentication for users in specific groups, you can enter the group names separated by semicolons (e.g., group1;group2;group3). When a user logs into Jenkins and belongs to any of the groups listed, they will be prompted to re-authenticate using the 2FA plugin.

For example, if you enter the groups admins;developers;users and a user who is a member of the user group logs in, they will be prompted to enter their 2FA code.

Raise a support ticket here in case you need any assistance