If you have a new login to your site, you will have been given a temporary "dummy" password. As soon as you are able to, you should change out that password to something only you know.
- Log into the site with your email and the dummy password
- Click the person icon in the upper right hand corner of the Sitefinity dashboard.
- Select Profile
- On the Profile page, select Change Password
- Enter your dummy password and then your desired password and click Save Changes once you're done! You will be navigated back to the profile page and your new password is set.