You probably receive Notices of Privacy from all the banks, stock brokers and investment firms your do business with. They are also send to companies that have business accounts. Have you ever bothered to read them? This is a quote from the Union Bank of California brochure for business accounts:
"To aid the Bank in complying with the Bank Secrecy Act and related laws and regulations, we may ask you for specific information regarding the nature of anticipated account activity, the sources of your funds, the purposes of transactions, the relationship you have with the persons to whom you send funds to and the persons who send funds to you, the anticipated frequency of such transactions, the ultimate beneficiaries of funds you send and receive, and other questions that may help to clarify the nature and purposes of transactions."
Gee, with all that info, they could be my company accountants. Hell, they might as well run my business for me.
Above is quoted under the Fair Use provision of the Copyright Act.