We have these same type of scanners at our precinct in Holmen WI and I am always uncomfortable with them as there is no proof that the machine is recording my vote as I have entered it on the paper - it is all in the programming of the unit - I don’t like them.
There is no one who can say that these are hack proof or can't be manipulated.
But I still think the big cheat is in the absentee and/or early balloting where there is time to remove votes and/or destroy votes