Within Teamwork Projects, you can update your password once you have already logged in to your site, via your profile settings.
Click your profile image in the top right of your site, and choose Edit My Details from the dropdown menu.
Go to the Account tab and toggle on the Change Password option. You will need to enter your current password as well as your new password and confirmation of the new password.
Click Update to save the new password.
If you have forgotten your password and you can't log in to your site, you can use the Forgot password? link from the login screen.
Once you click the forgot password link, you can enter your email address and generate a password reset email with a temporary password and a link where you can choose a new one.
For more information, see: Password security