Passwords can be changed along with other personal details from the profile details level. The profile details menu can be accessed under your profile avatar in the right-upper corner of Ziflow.
This opens the profile details where your password can be changed. Please look at the screenshot below:
Please note that if the SSO is activated on your account, the change password option will not be available.
If you want to read more about your profile details, please visit the following article: Viewing and Editing your Ziflow Profile