No, not in the way you’re thinking
Protect our wordpress site from security fail scanner (ex: wpscsan)?
You can do this by fixing security fails, which almost universally means keep your install up to date. After all, you test for the presence of an exploit by using that exploit, so there’s no way to be vulnerable but conceal it
Scanner that gives info like if our site is using wordpress, plugins and theme
You can take measures to make this more difficult, but it will require a lot of effort, all of which is unlikely to be effective. E.g. markup indicating Yoast SEO is installed gives away that it’s WordPress, as do the folder structures etc
All this will do in the end is lull you in to a false sense of security, automated attacks will attack you with every attack they have, even if you’re not running WordPress. They don’t check which CMS you’re running beforehand, they just attack. You can see this in server logs, with combined WordPress, Drupal, and Joomla attacks, all made indiscriminately
Keep in mind that some of the most prominent, well known, and targeted websites running WordPress have “powered by WordPress” in the footer