The primary privacy concern with modern security cameras is the vulnerability of the cloud. When you view your camera feed on your phone, that data is traveling through the internet.
The legality of home surveillance is governed by the "reasonable expectation of privacy". LegalShield Building a Privacy-Preserving Smart Camera System - arXiv tamil villages aunty hidden cam videos in peperonitycom link
Links claiming to host "hidden" or "private" content on defunct sites like Peperonity are often used as bait for The primary privacy concern with modern security cameras