> Would you bet millions of dollars on the goodness of the typical person? This is about business to business, not business to consumer. I suggest to talk to a

> Would you bet millions of dollars on the goodness of the typical person? This is about business to business, not business to consumer. I suggest to talk to a financial/accounting person in a big company. Often enough there are mistakes in payments that are only noticed by the other business. This despite all the various layers that should've prevented the entire problem. I don't mean small mistakes either, I mean where someone wanted to enter something like 1234.56 (two decimals), but it ended up as 1234560.00. Basically a mixup between the decimal and thousand separator; such mistakes happen way more often than you'd think. I've heard various stories of a vendor notifying the company that they've been overpaid, e.g. the 1000 times what it should've been, but also various other kinds of mistakes. Some companies have been working together for various decades. Employees might've switched between the companies, people know each other. It really isn't uncommon to have quite a bit of trust between companies. Obviously, this does depend on the country. In some parts of the world there's more trust than other parts.