Smart Home Is Easy to Cause Security Risks and Cause People's Anxiety

How many connected devices do you have in your home? According to a new report from trendmicro, if you have more than 10 devices, you are pursuing complexity, which will bring you a burden rather than make your life easier. For anyone who has too many networking devices at home, this is not news, but it is part of a rarely discussed phenomenon, which will affect the expansion scope of the smart home market and the security of such products.

Trendmicro, an information security company, has studied the complexity of smart home and released a report this week. I think it is a must read report for people in the industry. This complexity will also affect those who deploy networked devices to the enterprise environment, although they will have more resources to utilize.

The report mainly focuses on the field of smart home. Trendmicro divides smart home into two categories: the first is for those specially built, because they use dedicated and sometimes proprietary protocols to connect directly to the house. In this case, it may be necessary to connect server cabinets in each room and somewhere in the home to manage all devices. The other is more common, which is what trendmicro calls "add-on" smart home.

Trend Micro, a multinational information security software company, uses the Shodan search engine to find available home automation servers. Shodan is a search engine that searches for connected devices on the public Internet.

In order to study the complex smart home environment, trendmicro built one for each type of smart home and used two different home automation platforms to control them. In Germany, trendmicro uses protocols such as open source home automation server fhem and enocean to manage more than 70 devices as part of a dedicated smart home. In the United States, the company also added about 30 networking devices, such as ecobee thermostat and hue bulb, to create an "add-on" smart home. It uses home assistant to manage American homes. Home assistant is a home automation server running on a dedicated computer, similar to raspberry PI.

Smart home has many devices and relies on a centralized hub connected to the Internet, so it is vulnerable to various attacks. These attacks are as simple as finding an exposed automation system and using sensors and cameras to monitor people at home, as well as more complex attacks, including creating virtual devices and inserting them into the network to deceive the system.

Disturbingly, the more devices users connect to create routines or automation, the more likely the system is to fail or fall into some kind of attack. For example, if I use Bluetooth or other sensors to enable some type of status detection at home and then bind it to my door to lock or unlock, the hacker may just create a virtual sensor that "looks" like me in my online automation server, and in the process, I can also lock or unlock my door.

Trendmicro also found that many automation servers are online and can show devices to anyone. Some of these devices can even be controlled remotely. Even more shocking, when trendmicro scanned these servers, they found that some came from open source organizations and some from commercial suppliers.

This means that not only super nerds will be exposed, but small businesses and consumers who pay for business systems may also face risks, and these related security risks are disturbing.

But when I'm not at home, others can monitor my family through sensors and notifications, and even know when they leave home, when they exercise, and even when they finish taking a bath. To be honest, it's scary, even though they know I have this permission. It's bad to imagine that others can see all these things and add new functions or elements to the routine without my knowledge.

So how can we prevent this from happening? Trendmicro adopts traditional methods, such as avoiding hard coded passwords, changing passwords regularly and limiting the number of devices on the network. However, the company also put forward some suggestions that I hope the industry can promote more actively, such as ensuring that each device type is classified and known to the network. This visibility helps consumers understand what's on their network, but it also helps companies create logical rules for specific device types.

For example, some devices may need rules to prevent them from communicating with external web servers that are not run by the manufacturer. In essence, as these networks become more and more complex, the control of connected devices plays an increasingly important role in our safe and comfortable home. We will need enterprise level network security products, and the design of these products should take into account consumers.

Companies including trendmicro are already building such services for smart homes. Comcast has just launched one, Eero also provides one, and consumers can also buy independent devices from BitDefender and Cujo. It cannot meet the human demand for artificial intelligence, that is, to help manage more than 10 networked devices at home, but it will help ensure the security of these devices.

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