Hi,
Thanks for using SharedView.
SharedView by itself will not pose any risk to your privacy.
You have to explicitly 'grant control' of your application/desktop to someone while using SharedView. Furthermore, you can choose to grant someone control of just one application as opposed to your entire desktop. You can also choose to take back control at any time during a SharedView session.
As a result of these features, the only way you might lose information is if you grant someone control of your desktop and don't monitor them while they are controlling it.
Thanks,
Manisha.