Legal documents use "may" to allow for something. Usually it only needs to be allowed so that it can happen. So I read terms of service and privacy policies like all "may" is "will". "Your data may (will) be shared with (sold to) one or more of (all of) our data processing partners. You may (will) be asked (demanded) to provide identity verification, which may (will) include (but is not limited to) [everything on your passport]." And so on.