[2019] Major Bank Pin Security Problem: Hackers are able to figure what is the bank pin code is by using a simple timer and bypass it in less than 5 minutes.

You can test is yourself with a pro timer software or a custom/bot clients and log timers, there is a split milliseconds response delay from the servers (between 0.055-0.075) if you enter the CORRECT number on your bank pin, so right now all you need to do to bypass someone's bank pin is just use a small script to count the milliseconds between entering number X on your pin to the server response in each number from 0-9 for 4 times and click exit after each time you enter a number to avoid getting locked out for 15min/1hour , this is a major bug in security and apparently it been there for decades and it also explains how some people posted here about how they got there bank hacked even though the pin was still in place when they logged back in, I won't be surprised if this can't even be patched.

The same trick works in the Login screen when entering the wrong email , for example entering an email which doesn't belong to any account will result in a fast response from the server and if the email does belong to someone registered to the game it will take longer for the server to response (maybe to check if the password is correct).