> ultimately there needs to be some kind of 'privacy mark' in the same way films carry a cert to allow us all to instantly understand what using it will entail.

That was the direction we were wanting to go with the Private Play Accord mentioned at the end of our DEF CON presentation: http://www.privateplayaccord.com/

We got as far as drafting an initial star-based grading system but turns out writing code is easier... :)

Was made aware of this earlier initiative today: http://designswarm.com/blog/2015/09/what-does-it-do-a-propos...