Your security settings are where you change your email, reset your password, and — if you ever need to — close your account.
Email and password
Go to Settings → My Account → Security.
Change Email — click Change Email Address. A verification link goes to your new address, and your current one stays active until you confirm.
Change Password — click Reset My Password and Fieldsity emails you reset instructions.
Danger Zone
Warning:Deleting your account removes all of your data and is irreversible. Only do this if you're certain — there's no undo.
Related: Update your personal profile.