The WordPress Obscurity feature obscures certain WordPress settings from public view.
Note: Obscurity is not true security and so the following settings are down to your personal tastes.
The WordPress Obscurity options explanations
Option: Block Username Fishing
This option blocks the ability to discover WordPress usernames based on author IDs.
Important: Enabling this option may interfere with expected operations of your site.
If you want any URL requests containing "author=" to be killed, enable this option.
For further reading on the Block Username Fishing using author IDs scans, read the blog article here.
Option: Clean WP Files
You can use this option to automatically delete WordPress files that aren't necessary.
The cleanup process runs once each day.
Option: WP Generator Tag
This option helps you to remove WP generator meta tag.
If you want to remove a meta tag from your WordPress pages that publicly displays that your site is WordPress and its current version, enable this option.