These sites claim to use "mirrored endpoints" or "cached data" to show you posts that were once public or were captured by other secondary accounts. Verification Traps:

Ensure your account is set to "Private" in your settings.

Enable 2FA to prevent "viewer" apps from hijacking your account if you accidentally gave them your credentials in the past.

If you truly need to see a private account, there are only a few ethical and functional ways to do so:

By prioritizing safety, security, and respect for users' boundaries, we can foster a positive and engaging experience on Instagram.