To protect a property, these systems use technology like geofencing, facial recognition and A.I.-enabled cameras to help identify intruders. If someone breaks that boundary, the cameras will alert a command center. If someone loiters too long at a call box at the entrance to an estate, the system sends an alert to the monitoring center, which responds with a tailored warning, like "You in the blue shirt, please leave." Mr. Young said the system uses artificial intelligence to tell the difference between movement into and out of a property, but it also uses facial recognition technology to distinguish regular visitors -- like gardeners or delivery people -- from strangers. "When I worked at the White House, the grounds were gridded out with cables," said Mr. Young, who was part of the Marine One security detail and served as an emergency action planner to the executive branch during President George W. Bush's administration.

The rise of the'internet of things' has brought about a new era of personal security, especially for the super rich. Artificial intelligence and connected smart devices now allow wealthy homeowners unprecedented control over their properties, with high-tech cameras and locking systems to help regulate exactly who goes in or out at all times. But, while some have taken to extreme safeguarding measures, with rooms that can seal themselves off during a break in, and even plans for emergency evacuation via helicopter, lack of cyber security still leaves many customers'sitting ducks,' experts warn. Artificial intelligence and connected smart devices now allow wealthy homeowners unprecedented control over their properties, with high-tech cameras and locking systems to help regulate exactly who goes in or out at all times. Rich homeowners are turning to technology to keep their properties safer than ever. Facial recognition systems can learn regular visitors to pinpoint a stranger, and alert owners of their presence.