If a smart home device is controlled by a robber to assist in a home robbery, it is usually done through the following possible ways: 1. **Invasion of the network**: - **Brute force cracking**: When a robber has certain network technical capabilities, he may try to brute force the password of the network to which the smart home device is connected. Nowadays, many smart home devices use simple and easy-to-guess initial passwords by default, or some user-set passwords are not strong enough, such as pure numbers with a small number of digits, which gives robbers an opportunity. Once the password is cracked, they can control smart door locks, cameras and other devices connected to the network. - **Exploit vulnerabilities**: There may be security vulnerabilities in the smart home system or device itself. Hackers or robbers may search the Internet and use public vulnerability information to find weaknesses that can be attacked. For example, some smart home cameras have buffer overflow vulnerabilities. Attackers can use this vulnerability to remotely control the camera, or even gain control of the device and further attack other smart devices in the home network. 2. **Control smart door locks**: - **Hijack communication protocols**: If the smart door lock uses common communication protocols, such as ZigBee, Wi-Fi, etc., robbers may hijack these communication signals. For example, by interfering with the normal communication frequency band, the door lock loses contact with the user's mobile phone or smart home hub, and then imitates the legitimate device to send the unlocking command. Some smart door locks are designed with imperfect communication encryption mechanisms. Robbers may obtain key information such as unlocking passwords by sniffing the communication content, and then open the door lock. - **Deception device**: Exploit the identity authentication defects that may exist in smart door locks for deception. For example, some door locks rely on Bluetooth for close-range authentication. Robbers can forge Bluetooth signals and disguise themselves as users' mobile phones or other legitimate devices to deceive the door lock to complete the unlocking operation. 3. **Control smart cameras**: - **Tampering with video images**: After controlling smart cameras, robbers may tamper with video images to make them appear normal, so that people in the house relax their vigilance and think that there is no abnormality in the house. They can obtain the management permissions of the camera, change the transmission content of the video stream, or pause video recording, so that the surveillance system in the house cannot record their intrusion. - **Spying on the situation in the house**: Use the camera to view the activity trajectory, location distribution, and storage location of valuables of people in the house in real time. Based on this information, the robbers can more accurately choose the time and target of the burglary. For example, when all the people in the house are concentrated in a certain room, they can more smoothly enter other rooms to look for property. 4. **Interference with the smart home hub**: - **Signal interference**: By transmitting interference signals of specific frequencies, the communication between the smart home hub (such as smart speakers, smart home control host, etc.) and various smart devices is affected. The hub cannot normally receive or send control instructions, thereby disrupting the normal operation of the smart home system. In this chaotic state, the robbers can more easily implement the control of a single device without being detected and alarmed by the smart home system in time. - **Implanting malicious programs**: If there are weak links in the security protection of the smart home hub, the robbers may implant malicious programs into it through network attacks. The program can control the hub to act according to the robbers' instructions, such as turning off the alarm system, opening the door locks of a specific area, etc. 5. **Using smart home appliances to create cover**: - **Control smart home appliances to make abnormal sounds**: Robbers can control smart washing machines, dryers and other home appliances to start at inappropriate times or make abnormal noises. These noises can mask the sound of their entry into the house and avoid alerting the people inside. For example, if a washing machine is suddenly started late at night, the roar produced may make a sleeping person mistakenly think it is the normal sound of home appliance operation, and ignore the abnormal movement around. - **Control lights to create a false impression**: By manipulating the smart lighting system, simulate the scene of people moving around in the house. For example, time the lights in different rooms, or let the lights flash in an irregular way, giving people the illusion that there are still people moving around in the house, thereby reducing the risk of the robbers being discovered.