[mothered]

The technology has been around for a while- since the release of Windows 8. It's also Included In Windows 10 appropriately named "Picture Password".

You basically select 3 gestures on a given Image, and that's what's used when logging In. It's not as secure as many users may think and can be cracked based on "predictability". For example If the Image Is a face (any face, cartoon or otherwise), a commonality for users Is to select the eyes and mouth (or eyes and nose and so forth) as their 3 coordinates. As such, It's pretty simple to predict.

The same can be said for a flower. If It has a few leaves attached to the stem, the coordinates may well be one on the stem and the remaining two on random leaves. And so on.