While it reduces false alerts, it also collects granular data about human behavior. Your camera knows when the mailman arrives, when your teenager sneaks out, and when your neighbor walks their dog. Most manufacturers store this footage on the cloud, often unencrypted.

Unless you are trying to catch a specific verbal threat, turn the microphone off. It protects you legally and ethically.

Here is the uncomfortable truth about home surveillance and privacy in 2026. Modern security systems are no longer passive. They use AI to distinguish between a person, a package, and a pet. They can recognize familiar faces. Some even listen for specific sounds, like breaking glass or raised voices.