Every provider has their own set of flaws. Microsoft had a flaw for awhile where...

		ratg13 6 months ago \| parent \| context \| favorite \| on: Google’s OAuth login doesn’t protect against purch... Every provider has their own set of flaws. Microsoft had a flaw for awhile where you could just change a user’s email to anything with no verification.. and if the SSO implementer was only checking the email field, you could impersonate anyone.