In their continuing effort to keep end users safe and aware when they are visiting a non-secure website, Google has announced that starting in July 2018, these sites will be clearly identified in the Chrome browser. The change will coincide with the release of Chrome 68 and will be across all platforms as well as Chrome OS. A non-secure website is noted as http:// when you visit the site while a secure, encrypted site is noted as https:// in the URL.
The official announcement should not come as a surprise. Google has already been urging sites to move to secure deployments with changes in how page ranking is done for secure versus non-secure sites. This is the culmination of that effort.