21/08/2026
If you have an online shop, here is a question worth asking whoever built it.
When a customer places an order, does the price come from your database, or does the browser tell you what it was?
It sounds like a technical detail. It is not. The page on the customer's screen already knows the item, the quantity and any discount, because it has worked out the total in order to display it. The quickest way to build a checkout is to let the page send that total along with the order, and have the shop write down what it was told.
Everything works. The totals are right. Every order that has ever come through has been correct, because every customer so far has behaved normally.
The problem is that the number is sitting somewhere the customer can edit before it is sent. Not with any special tools. It is a couple of minutes' work for anyone who has looked it up once.
This turns up more often in apps built quickly with AI, because the AI writes exactly what it was asked for, and nobody asked it who should be allowed to decide the price.
If you are not sure which way yours works, that is a fair enough answer. Most people are not. It is worth finding out before somebody else does.