This data can be changed in administer -> blocks -> bluebox. Same is the case with the other two blue boxes on the right.    

User account

Home
Your preferred username; punctuation is not allowed except for periods, hyphens, and underscores.
A valid e-mail address. All e-mails from the system will be sent to this address. The e-mail address is not made public and will only be used if you wish to receive a new password or wish to receive certain news or notifications by e-mail.