“Is the Internet of Things safe?†This is an unclear question, but I often hear people ask.
To be honest, the answer may be "no." Just like our lives and the Internet, the Internet of Things (IoT) is not safe.
But this is not a very satisfactory answer, so let's explore it further. What are the indicators of IoT security? How do these indicator parameters affect each other? What conclusions can we draw?
We will detail these three factors:
• The cost of IoT security
• How security changes over time
• The scope of IoT security
Internet of Things security and economy
Let's start with a cost/value perspective. Often (anyone working on security will recognize this) everyone wants to achieve "highest" security at first, but if the cost is very high, this attitude is usually not so strong soon. Safety follows the general economic law: the higher the security, the higher the cost. Cost includes not only the cost of security measures, but also the cost of convenience: multiple passwords, repeated requests, and fast expiration.
So what is the acceptable cost? According to the general economic law, the cost of things should be equal to their value. Therefore, the cost of security measures should be comparable to the value of the protected project and the risks associated with the security breach. Logically, the higher the value of things and/or the greater the risk of security breaches, the higher the cost people are willing to pay to protect the thing.
This is logical, but the truth is not so simple. How do we determine the value in the IoT context? This is a very simple question when asking about the value of things that can be replaced at the store, but the issues we discuss here are even more difficult. Ask the museum director about the value of a painting, or ask the value of a parent's home alone. So how do you assess risk? Take a few minutes to read about a series of data security vulnerabilities, and soon we will find that we underestimate the risks.
Technological advances: increasingly complex risks
The second indicator parameter is technology, or more precisely, advances in technology. Things that are safe now may not be safe in the future, and things that were impossible in the past can be solved today.
In the past few decades, security has been battling with hackers. System complexity and the lack of absolute end-to-end regulation also play a role. Today's systems are becoming more complex, so that security vulnerabilities can easily occur, and when security vulnerabilities are identified, they need to be quickly patched. Some believe that the increasing complexity and associated costs are the biggest risks in building a security system. In any case, technological advancement at any given moment is an important factor in the overall security of the Internet of Things.
The scope of IoT security
This is a tricky issue. Security as a whole has no scope and no fair competition environment. Each security solution addresses a (possibly) specific security vulnerability and assumes that the vulnerability adheres to certain rules while staying within the scope of the problem.
The problem is, perhaps the best thing about this is that the only real rule is that there are no rules.
Let's look at some examples:
• Security System Imagine a house equipped with a security system that calls the dispatch center when an alarm is triggered. The safety system will not operate when the power is turned off. Adding a spare battery pack is fine, unless the dispatch center is powered off. Even if the security system operates as expected, the fact is that the windows of the house may still be damaged before the security personnel arrive, and the objects in the house may still be taken away and stolen.
• All data transmitted by wireless technology using wireless technology is fully encrypted. But the person who records the encrypted data (such as the username and password) and plays back the data can still get the data without decrypting at all.
• Wi-Fi mode or imagine someone listening to Wi-Fi communication in a house for several days. So, soon he will know if anyone is at home. In other words, even with all our secure Wi-Fi connections, we are still spreading information about when we are at home and at home.
• All data transmitted by wireless technology using wireless technology is fully encrypted. But the person who records the encrypted data (such as the username and password) and plays back the data can still get the data without decrypting at all.
• Wi-Fi mode or imagine someone listening to Wi-Fi communication in a house for several days. So, soon he will know if anyone is at home. In other words, even with all our secure Wi-Fi connections, we are still spreading information about when we are at home and at home.
Integrate various factors
These simple examples will give you an idea of ​​why security issues (especially Internet security issues) are challenging and why we have no reason to think that physical network security issues are easier.
Advances in technology and continuous redefinition of scope have made the situation uncertain, forcing us to constantly revisit current security measures. We don't know what will happen next, and we can't predict the threats that are coming. So how can we know if we are safe?
Although it may sound reasonable, we don't have to feel desperate. In our daily lives, we will make a reasonable assessment of how to avoid trouble. The same applies to the Internet of Things.
What happens in today's technology world will also bring new and great opportunities. The Internet of Things allows us to collect more data to learn more and make better ("more qualified") decisions more quickly. This new field will enhance the quality of our lives and create further prosperity. Of course, we need to understand how to get water in this new field and how to avoid trouble. Progress is a price to pay.
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