To protect Bigpond users’ emails and other personal information, strong passwords must be set for Bigpond accounts. Passwords must be complex and at least 12 characters long. Such combinations should include both uppercase and lowercase letters, digits, and symbols like @, #, $, etc. Passwords should not contain easily guessed words, personal information like names or dates of birth, or simple number combinations such as ‘12345.’
For example, if a user loves the word “Bigpond,” they can create a stronger password such as “I Love Bigpond Em@il.” Numbers or symbols can easily be incorporated. A password manager is one way to create complex passwords for all online sites, thereby minimizing the chances of forgetting them.
After creating a strong password, it is important to activate two-factor authentication (2FA) as the next step if available. This type of authentication sends an additional code to your phone each time you access your account, making unauthorized access more difficult. This system ensures that even if someone figures out or steals your password, they will still be unable to get into your account, as an additional verification step is required.

More Info: https://www.bigpondonlineservice.com/blog/how-do-i-change-my-bigpond-email-password/

More Info: https://www.bigpondonlineservice.com/blog/bigpond-password-reset-without-email-access/