Since there is a high demand for "private viewers," it is vital to ensure your own account is truly secure. Never enter your login credentials into any website that isn't the official Instagram app or domain. Check your "Authorized Apps" in settings to remove any suspicious third-party tools you may have granted access to in the past.
Requests for your own Instagram password to "sync" the viewer. instagram private profile viewer free
It is the only 100% effective and safe method. Since there is a high demand for "private