You can likewise take advantage of Away Lighting to make it seem like you're at home, with machine learning flicking lights on or off based on its understanding of typical customer behavior. Not surprisingly, your voice can arm or disarm ADT (Control or Pulse) and Ring systems.
The feature is free if you have an Echo device, and only requires delving into the Guard section in settings to get started. You might not get it right away as it's gradually rolling out.
This isn't going to replace a full-fledged security system or dedicated security cameras. If an intruder is quiet or breaks in through a door, you're still in trouble. However, it could offer some peace of mind if you can't justify the usual costs of home security or want to augment your existing safeguards. This also shows how smart speakers can be put to work beyond voice commands. While there are privacy concerns with having the devices activate for sounds other than a keyword, they could prove useful for detecting all kinds of unusual audio cues in the right circumstances.