The reason you are seeing the “Not Secure” warning is because my webpages or website is not providing an encrypted connection. When your browser connects to a website it can either use the HTTP (insecure) or HTTPS (secure). Mine is ONLY HTTP.
Any page providing an HTTP connection may cause the “Not Secure” warning.
Generally I do not ask you to provide any information on my web site.I only provide information to you. I don't ask you for any information.
Therefore even though the connection is insecure there's nothing to worry about because you should never provide me with any information.
I provide you with text and pictures only. I do not provide you with any executable code. therfor everything I provide should be safe.
If you're in any way still concern then contact me and speak to me about it.