[pgeorgi]

A German charity whose operations I know publishes their bank account information pretty much everywhere: on their website, on sides of their car.

It was a bit of a nuisance at times to roll back a few fraudulent transactions but apart from calling up the bank and making it their problem (maybe 1h of life time lost to that, in total), the damage to the charity created by publishing the bank account information has been 0€ in well over 10 years.

Those are regular accounts, neither bank offers some kind of "ingress only" bank account number (that automatically clears to the real account, or something like that), even though that would save _them_ time.