This is a deceptive practice. The password belongs to your own privacy, and you can't tell others at will under any circumstances.
Private lending can be paid (interest-bearing loans) or free (interest-free loans), and whether it is paid (interest-bearing loans) shall be agreed by both parties. The upper limit of judicial protection of private lending interest rate is 15.4%, which is calculated as 4 times of the quoted interest rate of one-year loan market announced on July 20, 2020.