It's no secret that Google has been encouraging all website owners to convert to HTTPS, and we also started recommending HTTPS upgrades to REW clients back in 2014. But the stakes are getting higher and Google will be upping the ante next month.
Here's the announcement Emily Schechter of Chrome's Security Team made in a recent blog post:
"In January, we began our quest to improve how Chrome communicates the connection security of HTTP pages. Chrome now marks HTTP pages as “Not secure” if they have password or credit card fields. Beginning 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."