I think these things tend to be a lot more common on the continent. I sold some records on eBay to a Belgian once and he wanted to pay by bank transfer so asked for my BIC and IBAN numbers. I had no idea what these were so queried it with my bank and they are numbers that contain you account info, plus some extra data. I was a bit nervy, but they assured me it was quite safe, and no-one seems to have looted my account yet.
As BAS says, all of this info is freely available on cheques etc., so no real need to worry. If you are transferring from account to account then the recipient has a traceable account too...
As BAS says, all of this info is freely available on cheques etc., so no real need to worry. If you are transferring from account to account then the recipient has a traceable account too...