Is money earned from a savings account in a bank lawful (halal) or unlawful (haram)? And if it is unlawful, what should be done with it?

It is impermissible to deal with usurious banks or to deposit money in them, because they are based on usury (riba). One must avoid dealing with them except in cases of extreme necessity, such as the absence of another safe place for money. In such a case, one must transfer to a non-usurious bank as soon as one becomes available. The usurious interests received are unlawful (haram) and must be disposed of by spending them on the poor and needy and on charitable causes. They should not be left to the bank.