The basic security of the Internet of Things can be divided into three simple steps.
If there is any debate about how popular the Internet of Things (IoT) is, it can be stopped now, because in 2018, the number of IoT devices is expected to exceed that of smartphones. Companies such as Google, Apple, Microsoft and other major companies have invested heavily in IoT technology, which is widely considered to be the next wave of technology.
However, as with any new trend, there are still some issues that need to be resolved. For those who have just started the practical application of IoT devices, it is helpful to continue reading the following to understand more about IoT security issues and how to deal with them.
What is the inherent security risk?
There are so many companies involved in IoT technology development that are very important for the diversity and usability of the Internet of Things, but it also brings some problems. At present, large companies in this field compete with each other and compete for the dominance of the Internet of Things. As their battles become more intense, smaller companies are creating their own Internet of Things protocols.
Unfortunately, the unified standards of the Internet of Things have not yet been introduced. It is hard to say whether consensus can be reached. The diversity of the Internet of Things also makes it difficult for developers to establish any large-scale security solutions.
Before further standardization, there are three lines of defense to ensure the safety of Internet of Things devices.
First Line of Defense: Protect IoT Device Passwords and Stay Up-to-Date
This may seem simple, but ensuring that IoT devices have secure passwords and stay up-to-date is a very important and often overlooked step in protecting information security. Unfortunately, most IoT devices are neither secure nor obsolete. For example, many IoT gadgets simply set up and plug in to run.
Some devices may look harmless, but if you connect directly to a digital assistant such as an iPhone or Alexa, the default setting may seriously threaten your security.
You need to change the default user name and password of the device and set up multi-factor authentication if possible. You also need to verify whether the device can have automatic update function. If not, please check the firmware and software update prompt provided by the device manufacturer regularly.
The second line of defense: ensuring network security
When the device is safe enough, you also need to pay attention to the network security of the connected device. There are many ways to protect the network from security threats, such as the following methods:
Network Security Protocol: The network security protocol is the foundation for building a network security environment and is a key technology for building a secure network. Make sure that the modem or router does not use any default password, and that the router uses a secure Wi-Fi standard, or consider setting up a separate network for visitors to use in order to keep their smart devices independent of the network connection.
Firewall: A firewall is a term that is often mentioned but seldom explained. Simply put, a firewall is an electronic barrier designed to prevent hackers from accessing certain sensitive information. Your computer operating system may have some sort of firewall software, but this does not protect your other devices on the network.
Although using a built-in firewall on the operating system is always better than nothing, in fact, if hackers have already crossed the operating system firewall, they are already on your computer. On the other hand, by setting up a firewall through a router, all Internet traffic must pass through. This router, the firewall can help filter out potential attacks.
Virtual Private Network (VPN): The VPN service takes all information from the network and encrypts it. Encryption allows you or your smart device to connect to the network as usual. With data encryption, data can be considered securely transmitted on a dedicated data link, just as if a dedicated network was set up. However, in fact, VPNs use public links on the Internet, so VPNs are called virtual The private network, in essence, is the use of encryption technology to encapsulate a data communication tunnel on the public network. For full protection, you need to set up the VPN client software on your router, because setting up a VPN on each individual device can be difficult or impossible. Unfortunately, accessing a VPN service usually requires monthly/annual payment, and because your information must go through an external source before reaching its final destination, this may make your network connection seem sluggish.
The third line of defense: Demolition of old equipment
With the emergence of more and more new IoT devices and regular replacement of old devices, it is increasingly easy for people to forget about every networking device on the network. However, old IoT devices may configure old security protocols, login passwords, and a host of other threats to the network.
Each device in the Internet of Things is a potential weak point that must be protected. Therefore, if old equipment is no longer used, you need to completely disconnect the old equipment's network connection, or even reset the factory model to reduce the number of equipment you must know.
to sum up
The basic security of the Internet of Things can be divided into three simple steps: protecting the equipment, protecting the network, and knowing what equipment is in the Internet of Things. Keep in mind that although the devices themselves may not contain sensitive information, they may leave your web portal open and the older the device, the greater the security risk they pose. The idea of ​​the Internet of Things is to make our life easier and more convenient, but security is always the top priority that we must take seriously.
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