Can a doorbell camera act like a security guard?

SimpliSafe has launched its Video Doorbell Series 2, which connects to a service called Active Guard. When the doorbell detects activity, it uses on-device software—a set of instructions that runs locally on the camera—and cloud-based computer vision—software running on remote servers that identifies objects and people—to decide if a person is a potential threat. If the system is armed and triggered, a remote human security agent can see the live video feed. This agent has the ability to speak through the doorbell to interact with whoever is at your door, with the goal of deterring package thieves or intruders. The device uses an amber light to signal that a professional agent is watching, distinguishing it from the blue light that glows when you, the homeowner, are viewing the feed.

This system relies on a process called computer vision, which is a way for a computer to process and understand the contents of digital images. The camera is trained to recognize patterns, like the difference between a person and a swaying tree branch. Once the software flags an event, it acts like a filter. Instead of alerting a human to every passing car or squirrel, it only signals the security agent when the patterns match a specific type of motion, such as a person loitering near your packages. The agent acts as a final layer of judgment, confirming whether the AI has identified a real risk. This is the crucial hand-off where the automated software provides the data and the human provides the context and action. Privacy is maintained by keeping the video feed encrypted, meaning it is scrambled so only authorized parties can view it, and the system only allows human access when the security settings are specifically armed.

The shift toward professional monitoring reflects a move away from passive observation toward active intervention. While many people use smart cameras to simply watch a recording after an incident occurs, these services attempt to prevent the incident entirely. The effectiveness of this approach often depends on whether you live in an area with high rates of theft or false alarms, where having a human verify a threat before police are called can be a significant benefit. However, this level of security requires a monthly subscription and a comfort level with having strangers occasionally look into your home. It moves the home security camera from being a static record-keeper to a tool for real-time human interaction.