The search term refers to a dangerous scam with no real functionality. Facebook does not allow any third-party tool to breach its privacy settings — and anyone claiming otherwise is lying to steal your data or infect your device.
The "Facebook Private Profile Viewer by iStaunch" operates on a "Cost Per Action" (CPA) or affiliate marketing model. facebook private profile viewer by istaunch upd
: The URL is pasted into the Facebook Locked Profile Picture Viewer on the iStaunch website. The search term refers to a dangerous scam