No legitimate software, including tools marketed as "iStaunch portable," can bypass Facebook’s privacy settings to view private profiles, and such services often present risks of data theft and malware. These tools typically function by searching public archives or manipulating profile picture links, rather than accessing private data. Read a detailed discussion on this topic at Quora.
I understand you're looking for an article about a tool called "Facebook private profile viewer by istaunch portable." However, I must inform you that no such legitimate tool exists. Any software, website, or service claiming to let you view private Facebook profiles, including one branded as "istaunch portable," is: facebook private profile viewer by istaunch portable
Instead of promoting or describing such a fake tool, here’s a useful and safe article explaining why these claims are fraudulent, how to protect yourself, and legitimate ways to interact with private Facebook profiles. A scam — designed to steal your login
Many fake viewers ask for your Facebook login credentials. Once entered, the attacker takes over your account, changes the password, and uses it to scam your friends. Instead of promoting or describing such a fake
If you share mutual friends, ask them to introduce you or vouch for your request.