With the increasingly close connection between the national grid, the risk of cyber attacks has also increased. Through the Internet, from California's nuclear power station to the Texas power line, to the microwave in the home kitchen, hackers gained more points of attack into the system. According to a report from the American Physicist Organization Network on May 31 (Beijing time), computer experts at Wake Forest University in the United States are training a special “digital ant†force that can be patrolled on the grid in the future to search for sabotage. Systematic computer virus.
Wake Forest, a computer network security expert at Wake Forest University, said that although many security personnel are unwilling to admit it, the power grid may be more sensitive to cyber attacks. For example, viruses or computer worms can enter more secure power networks through less secure locations such as home smart grids. When the network and power supply are connected to the smart grid, they become an attack point for computer viruses. Virtual cyber attacks can bring real results, causing a city to stop power supply or shut down a nuclear power plant.
Digital ant technology is different from traditional static security strategies. They circulate around the network and look for such threats as computer worms, stealing information, copying programs, and reducing unauthorized access rights. Once the danger is detected, the ant will be summoned to meet the site of the incident to attract human operators to investigate the problem. Foep plans to develop thousands of different types of digital ants to search for various threats.
When digital ants perform tasks on the network, they will follow the scent of natural ants and leave digital trails to guide other ants. Once it finds a sign of threat, the program leaves a stronger odor and can attract more ants. If an ant colony appears, it means the computer may be infected with the virus.
This idea was successful in a small range of experiments, but it is still to be verified whether the National Grid can handle such a large range of complex systems. This summer, scientists from the Verp team, PNNL, and the University of California, Davis, will use PNNL's supercomputer platform to review the capabilities of their "ant patrol." Ken Birchoutt, an associate professor of mathematics at Wake Forest University, will use a mathematical model to simulate the “behavior†of ants reaching a node, predicting what happens when ants climb into the smart grid, from home water heaters to substations, to power plants.
"Digital ant" technology was rated as one of "Top Ten Technologies That Can Change People's Livelihood" by Scientific American magazine last year. Once this method has been proven to successfully protect the power grid, it will also be widely used to protect other connections. To SCADA (Supervisory and Digital Acquisition) facilities on the network, SCADA is a computer system that can control the entire water supply and drainage management system, logistics and transportation systems and industrial manufacturing systems.
"We know that natural ants can successfully defend their homes," Fopp said. "After the danger is eliminated, they can quickly disarm and restore daily behavior. We are trying to implement this framework in computer systems."
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