Below is guides for setting private key Password.
*The advantage of private key Password
For higher security needs, MeSince allows user to set a private key password for his Encrypting Certificate. By adding the password, the Encrypting Certificate will be issued only when email account the the password are both validated.
In case user's email account is hacked, the malicious person cannot get his Encrypting Certificate to decrypt his email content.
Please note: If your email is already used to bind other service system accounts, it is highly recommended that you use this Enhanced Protection Level, and set a private key password.