One of my websites is constantly being scanned for WordPress directories and files. This particular site never had or will have WordPress. If it did then I would follow the standard practices outlined at Hackertarget to prevent getting hacked.
There currently is a blank 404 page for the site (not really user friendly, but that's the point). This does not seem like the best option so I am considering using either an internal 301 redirect or possibly redirecting any requests for /wp/*, /wordpress/*, etc..., over to WordPress.org.
A similar question was asked, but I am not concerned about SEO and those answers do not address this particular scenario.
So, which is best? 1. Keep the blank 404. 2. Internal 301. 3. External 301.