Hi there. In the PlayFab Terms of Service it states...
"PlayFab’s security measures will be set forth in a PlayFab Security Policy. PlayFab will make that policy available to you, along with descriptions of the security controls in place for the PlayFab Services and other information you reasonably request regarding PlayFab security practices and policies."
A little Googling failed to reveal any info... where can I find the PlayFab security policy?