Onun bir İsviçre banka hesabında gizlenmiş çok fazla parası olduğu söyleniyor. - It's rumored that he has a lot of money stashed away in a Swiss bank account.
Banka hesabını bilmemizde bir sakınca var mı? - May we know your bank account?
A bank account is an arrangement with a bank which allows you to keep your money in the bank and to take some out when you need it. Funds deposited in a bank that are credited to and subject to withdrawal by the depositor. an arrangement between a bank and a customer that allows the customer to pay in and take out money