How to Make WordPress Site Secure from Hackers?

Rootball

Would like to know all possible way to make my WordPress site secure from hackers.
Are there any experts who can share their tips here?

One of my co-workers shared these ones:
- Create WordPress Sites on FLATsite
- Use TLS or SSL Certificates
- Utilize DDOS Protection
- Implement a Website Back-up
Have you tried Flatsite static wordpress site generator? Is it really good solution?
So, could you share your view points on securing wordpress site from hackers?

Thanks.

rockolop

Consequently, if you deploy static content on your website, there are some security best practices to employ to keep your WordPress static website secure. I would like to say that flatsite.com is offering "Start at $1" plan for the 1st month. So you can try them out for only $1.