JD.COM didn't let the cat out of the bag, because Jingdou wanted to be a currency of JD.COM. You have to use the payment password every time you use Jingdou. Your JD.COM account may have an incomplete identity, so you enter your ID number and bank card number to verify that your identity is normal.

JingDou is a reward given by JD.COM users for their shopping, evaluation, printing and other related activities on JD.COM website. Simply put, JingDou can be exchanged for money and spent as money, but JingDou is only used on JD.COM website.