For those who can create multiple addresses... This is being able to select the email address or username with which you want to log in on your protonmail account. Thus, if you cannot log into your protonmail account with the addresses used for account creation on other websites (potentially made public) but you must log in with the "secret" email address that you have chosen or the username, the security of your protonmail account will be greatly improved. If I do not make a mistake and if I did not miss such an option, at this time it will not only be necessary to discover the code but also the email address or the username to access your account .
Yan b
For those who can create multiple addresses... This is being able to select the email address or username with which you want to log in on your protonmail account. Thus, if you cannot log into your protonmail account with the addresses used for account creation on other websites (potentially made public) but you must log in with the "secret" email address that you have chosen or the username, the security of your protonmail account will be greatly improved. If I do not make a mistake and if I did not miss such an option, at this time it will not only be necessary to discover the code but also the email address or the username to access your account .