You can change the password of your postel.bzh account by choosing Security in the Options menu.
Your password must be chosen carefully to ensure the safety of your postel.bzh account. It is in particular recommended to avoid:
postel.bzh recommends using a password at least 8 characters long, combining numbers, upper-case and lower-case letters, and special characters. Your password is case-sensitive.
Only you should know your password and you should of course never give it to anyone. In particular, never reply to spam messages asking you for your password, whatever reason is mentioned.
It is recommended that you change your password regularly, and especially as soon as you suspect that it might have been compromised.