Itqualityassurance
By splitting up the process, the site is collecting as much information about the account as possible, so that they can be 100% sure. In addition, most of the time people remember their password, but not their username, or vice versa. Separating the process makes it easier for them.
- Why are usernames and passwords separate?
- Why do users need to provide their password twice?
- Why is it a security problem if you use the same password for all the systems and websites you use?
- Why does the login require both a username and a password?
Why are usernames and passwords separate?
The most common reason to put username and password on two different pages is to support both: single-sign on (SSO) (i.e. sign in with Google or a service like Okta) username/password login.
Why do users need to provide their password twice?
It is to avoid typos. If you have to type the password twice chances are you'll make your password what you want. They want to avoid having people whose password is "blah" having to retrieve their password later on because they typed "blaj" by mistake.
Why is it a security problem if you use the same password for all the systems and websites you use?
Using the same password across multiple accounts can lead to credential stuffing. Credential stuffing is when hackers use previously stolen login credentials from one website and then “stuff” these credentials into other websites until they find matches.
Why does the login require both a username and a password?
Your password is your authentication. Password authentication relies on a secret value that is known only to you. So if a website used only your username, then anyone who knew your email address, for instance, could log in to any of your online accounts, including your bank, email, Facebook or Amazon accounts.
