These systems are the gold standard for privacy. Footage stays on a physical hard drive or SD card inside your home. If there is no cloud bridge, there is no remote server for hackers or corporations to access.

Reolink (no cloud dependency) Avoid for privacy: Ring (business model is data-sharing with police)

Cameras that store footage on a local microSD card or a Network Video Recorder (NVR) keep your data off the internet. Cloud-based systems are convenient but mean your video lives on a company's server.