When I log in to "My Page" and look at the html source, there is a "password" column, and a long random string is applied. What is it?

Added on May 16, 2022

RL has taken some measures to protect security, and "one-time password" is one of them. If the third party attempts to use this "one-time password", it means that the SSL connection between you and RL' server has been broken. If a third party attempts to use this "one-time password", RL will know it and can embark on an investigation.

And, no one can log in with this one-time password.

Addition, in RL's system ( "Rainbow-Link" ), if "Rainbow-Link" recognized that the account was created by mischief, after assigning a real password to the "one-time password", the account removed at 0:00 the next day automatically. In this regard, RL has made improvements in the direction of "cannot log in" or "cannot create an account" instead of "delete the account once created", but it is not complete yet.