Respuesta :
The Primary Email
Account login credentials is most important to keep secure because it links to
all your account. Such as Credit Card website, 401(k) website, Mortgage website and Bank
website.
The answer is: Primary Email account
Primary Email account would most likely linked to all of your other online account and typically used by other online accounts as their method of verification For example, if you forgot your password and cannot enter your credit card website or bank website, the website usually can send a new passwords to your email.