They don't need to remember photos at all. Just track the person beginning at the point of scan.
Re:Amazon Go
by ReverseCold on Monday December 05, 2016 @10:29AM
(#13105946)
Just don't share the account. That may already be part of their ToS.
edit: I just realized how they can deal with that -- take a picture when the person walks in and tie it to the account they scanned. There still seem to be a bunch of fraud issues, but this is certainly interesting.