What Is IoT Security? Why It Is Necessary?

In today’s world full of electronic equipment and modern gadgets, it is always good to have security. The gadgets are becoming more and more advance and someone’s important data should not be lost by it. That is why IoT security is very important to protect those devices from intruders and hackers.

What is IoT Security?

Before going too deep into complex IoT devices and hardware, let’s see what is IoT security.

IoT security is the security method of protecting every different hardware and different device that connects to the IoT network. This security consists of many different regulations, processes, and different technologies to make higher security. Same as cybersecurity, IoT security is very important for the devices which connect to the IoT network.

Key elements of IoT security


Authentication is the most important primary element of IoT security. Whenever two or more IoT devices connect to the IoT network, they must have their authentication. Without proper authentication, the devices should not be allowing to connect to the network. Hence their identities are a must. The source of origin of the information is the most important in the authentication.

Control access

This is also one of the most important key elements of IoT security. It is obvious to have different access controls with different batches of employees. A junior employee or a freshie must not have all the login credentials and access controls like the senior employee.

Data security

Encryption is the most important value in providing data security. Suppose communication between two ends takes place and some intruder manipulates or reads the information transmitting between these ends. That is why we do encryption, that is to convert the original message into a human unreadable format using strong algorithms. Then if the intruder gets the message also then no problem! He will not be able to decode that message because it has higher encryption. That can be decode only at the receiver’s end using the same algorithm but in reverse.


Availability is a necessary key element of IoT. It is a must thing to run all the things in real-time. The availability of good resources, sensors, hardware, proper internet connection network, etc. is a must. Without it, we cannot get the real-time output by the IoT network and even it might not work properly also.

What Are The Types of IoT security attacks?

There are many different types of IoT security attacks same as the cyber attacks. These consist of accessing any IoT device remotely without the user’s permission and also manipulate their data. This could lead to blackmailing or money launder in return for security. Let’s discuss some of the common IoT security attacks.

Communication attacks

This is one of the most common IoT attacks in which an intruder tries to break or manipulate communication between the hardware and the IoT network. This leads to the transfer of information into the wrong hands. Also the functionality of IoT networks and other connected devices very low.

Physical attacks

This type of attack is performed directly upon the software of the IoT network. Cyber terrorist tries to gain access to server’s network and manipulates the information further.

Attacks on hardware

These attacks are directly carried out on the hardware devices affecting the sensors. This will lead to wrong information taken by the sensors and affects the whole IoT structure.

Dos and DDoS attacks

The attacker sends continuous garbage requests and spam useless information in the network pathway. This leads to a state which is called the “server down issue”. Because the server is not made to handle so many requests at the same time, it crashes and it cannot run on its current RAM. What happens in DDOS attacks is Intruder forms a big network of malwares and Trojan files which are continuously sent to the main IoT network. Whenever any person uses IoT devices, it has a chance to get affecting by those malwares.

Unauthorized user

In this type of attack, the cyber-terrorist tries to take your credentials such as your username and password or your date of birth. This information is used by the intruder to get access to your workspace. Cyber terrorists may be unauthorized in real but the network allows them to work as it has the originally stolen credentials of a user.

Informaion manipulation

This stage comes after the unauthorized user logins into your account and tries to manipulate or delete the data. This can be very dangerous as all your data and files are in the wrong hands. This will not only affect that particular but the whole IoT network gets wrong information from it and becomes less functional.

Information disclosure

Your stored data is as important as your login credentials to your account. If someone manages to find the exact location of your database, then it is known as information disclosure. This leads to a whole data leak and the real trouble begins.

What are the biggest challenges?

Some of the real estate problems of IoT security are:

Manufacturing standards

These are some of the biggest challenges of IoT security. The first is manufacturing standards. As we know different counties and different companies follow their method of making hardware for IoT. This affects the manufacturing standards, that is not the same at all other different companies.

Users awareness towards security

The second one is the user’s awareness of security and how people react to this topic. People always think that if someone happens regarding the security of IoT network then it was the responsibility of security managers. They blame others for not being aware of the network. But in reality, it is the responsibility of both the users and workers.

Update management

Then we talk about the update management issues. This issue is hectic as installing new hardware with the different standard will lead to errors and bugs as they cannot compete other. Also installing new hardware will bring the problem of how we gonna finish this.

Physical hardening

The physical hardening is the part related to the hardware. Updating the hardware physically and bringing new methods to operating can be challenging. These IoT devices do not accept the changes easily. They need time to change their method of working. This is a huge challenge.

Network security

As we discussed, security is a big challenge. Cyber terrorists are becoming more powerful and advanced. They use the latest modern technology and powerful algorithms for breaching the security of the modern era.  

Hence IoT brings wellness to all of us and gives a real 21st century feel. These high-tech devices can be more powerful as IoT brings them all together. These big achievements bring big challenges. That is why continuous development in the IoT field is necessary. As a result, there is a great demand in upcoming years for people qualified in IoT and its security.

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