Since Median is a code embed, it can easy be added or removed from any page on your website. If a page has PII on it then simply remove the Median code and that data will never be transmitted in the screen share.
Also, inside our privacy settings an admin can select any piece of their website they wish to be removed from the screen share.
Lastly, Median does not record any session data. Once a screen share session is over, all proof that it happened is terminated.