Do you have a search box or form on your website? Are you still using HTTP for your site? If so, you may want to begin the process of switching to HTTPS sooner rather than later.
Google says it is preparing to launch new efforts within their Chrome browser to encourage webmasters to migrate to HTTPS, the newer, more secure security certificate for websites. Beginning I October, the browser will begin showing warning messages to visitors on pages with search boxes or forms.
As Google says, “[in] October 2017, Chrome will show the ‘Not secure’ warning in two additional situations: when users enter data on an HTTP page, and on all HTTP pages visited in Incognito mode.”
You can preview what the warning will look like in the gif below:
The warnings are just the latest effort by Google to encourage the adoption of HTTPS. Just recently, Chrome warned webmasters that pages with logins are now required to use HTTPS.
The end goal for Google is to mark any web page using HTTP as insecure, but it could be a lengthy process.