Not too disastrous, I shouldn't think - people have been publishing their account number/sort code tuples in the back of Private Eye for the past several decades now. Beyond paying in money there's nothing much one can do with them.
They can be hacked, so wouldn't put a main account or anything with a overdraft up there!
They can be hacked, so wouldn't put a main account or anything with a overdraft up there!
http://news.bbc.co.uk/1/hi/entertainment/7174760.stm