Taking a screenshot of an order confirmation allows for free food for eternity

[stefanvi]

Describe the bug

Hypocritically, say that someone takes a screenshot of their confirmation order and shows it to the good folks behind the bar. Thems folks are very busy because they have many orders at the same time. Allegedly it is possible to take a screenshot and present it as if you had ordered it at the current borrel. (Ok real talk: we tested this with a screenshot of an order that we actually made, but it does work).

How to reproduce

1. Take a schermafbeelding
2. Show to cad
3. Major, and I do mean major, profits

Expected behaviour

NS shows a gif of a moving train, which confirms to a verifier that it is at least moving. Maybe it's possible to block screenshots. During recent snooping activities I recently learned that whatsapp blocks screenshots only of profile pictures. Haha crazy how nature do that. But mayhaps it is possible to block screenshots only of the order thingy.

Screenshots

Quite literally

Additional context

Kinda whacky issue, but I'm a lil tipsy.

[DeD1rk]

It's a fun social engineering thing. Indeed it will probably work, but the committee does have a list on their phone, and checks that the correct amount of stuff got delivered. So someone will get very sad about not having dinner if you do this. If it happens in practice, the easy and only solution is for the committee to check in the admin.

Besides, we have plans to deprecate the 'pizzas' feature and implement self-ordering in 'sales' (thadmin). When we do, we'll have to reconsider the UI.