https://www.cnet.com/news/chromes-long-promised-http-not-secure-website-warnings-arrive/

Three and a half years ago, Google predicted that the day would come when Chrome would warn us all of the security risks of using the web's seminal HTTP technology to deliver web pages to your browser.

Google's newest web browser version, Chrome 68, gives new prominence to a broad effort to curtail surveillance, tampering and security risks on the web by showing a "not secure" warning for any HTTP website. Instead, Google wants website operators to use HTTPS, which adds encryption to the connection between your browser and the computer hosting a website.