The term Internet of Things (IoT) is both broad and vague. There is a saying that it contains any kind of "thing" that can be part of the network. This definition is obviously not precise enough. In fact, no definition is satisfactory.
As a matter of detail, IoT seems to be more of a concept of a psychological category than a concept of a technical field.
For the answer to the question "What is the Internet of Things?", people often give a long list of examples by way of example. The list of examples may include:
· Smart home
· SCADA/ICS
· Factory automation assembly robot
· Self-driving cars or connected cars
· Wireless fitness equipment and other wearable devices
· Networked medical machinery
· smart phone
· Home entertainment system
· Computer
Does this list help in understanding IoT security issues? The list contains so many things and use cases that it is difficult to see what is common during the period. Some of these things are designed with security thinking in mind, while others completely ignore security issues. Some are actively managed and maintained by users or administrators, others are left behind once they are installed.
If you want to conduct an effective discussion around the Internet of Things issue, you must first reach a consensus on the definition of the "Internet of Things." More specifically, to discuss IoT security, we have to define and confirm the concept of "problem Internet of Things (PIoT)." Of the things listed in the list above, there may be a few that may not be included.
The psychology of the creators and users of these devices is what we should pay attention to, but the technical details of their work or their design goals are not so important.
The desktop computer is located at one end of the IoT device list. The creators and users of the computer default to these machines should be updated regularly, from time to time with anti-virus software and other security tools to check, it is reasonable to maintain the environment of the machine. The computer is to have active management. Computer security, although far from being resolved, has always been the focus of consideration. Everyone knows that their important data and resources are at risk and that attacks on computers have always been there.
In contrast to smart toasters (a classic example that may not yet be real in the real world), it is likely that neither the creator of the toaster nor the user has much thought about the effects of the blackening of the toaster. They may not realize that baked or unbaked bread will also have an effect. Of course, security experts see them as vulnerable devices in the boundaries of the home network.
Security experts know that these devices can be used to collect information, capture network credentials, initiate follow-up attacks, and more. Indeed, they do not have a user interface for managing and viewing security status. Neither the creator nor the user expects a toaster to be regularly patched and updated. For most people, this idea is simply too strange.
A related idea is that security is not part of the device's perceived value. Users don't have a security need for their light bulbs, so they don't pay extra for the safety of the light bulb, and creators (especially startups) won't introduce security into their original design and architecture.
The Trouble of the Internet of Things (PIoT) was born directly from the thinking of creators and users. The first assumption they made was that the device would not be attacked. They may think, "Don't be a smart light bulb, there is no black value at all." Or, they would think that their technology is not connected to the public Internet (such as SCADA devices), there is no reason to be hacked.
Creators and users often default to these devices not, can't, and need not be well maintained. They are not visible to the user and do not provide an interface or interface for management.
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