I think the point is that the pin code to login to the app is printed on the top right corner of the tally sheet. Now that various people have been posting phot

I think the point is that the pin code to login to the app is printed on the top right corner of the tally sheet. Now that various people have been posting photos of tally sheets online - in the case of this tweet, a staffer for Paul Buttigieg - the concern is that members of the public have been trying out the app and pin codes just to see if it would work, and modifying the submitted numbers. Though according to the spokeswoman for the Iowa Democrats in the NYTimes article, they don't believe any of the 3 reporting discrepancies are the result of an intrusion. There's more discussion about this over on the other HN thread: https://news.ycombinator.com/item?id=22232737 https://news.ycombinator.com/item?id=22232737