The forbidden PIN code that could cause you trouble in China or any Chinese mobile app as it refers to the date of Tiananmen Square Massacre (which is heavily censored).
I set my bank PIN code 060489 recently and now my Chinese bank account is locked with -20000 social credits. I hope 040689 don't lock me out of another Chinese bank app like this one.
by Shiine-1 June 17, 2025