If I use Radium3, do I need to secure my own website hosting?

No. Hosting is included at no cost with Radium3. And it's quality hosting, the type of hosting that would be cost prohibitive to secure for your individual website. However, since we host thousands of websites on Radium3, we are able to provide top-tier, cloud hosting for every website on our system. All sites are hosted in one of the largest datacenters in the US. Our hosting is fast, dependable and secure.