Challenges in IoT: Security and Other Critical Problems with IoT


The Internet of Things (IoT) is one of the most active and fascinating innovations in information and communications technology. Although networking technologies have become more widely used in recent years, they were mainly used to connect traditional end-user devices such as mainframes, desktop and laptop computers, and, more recently, mobile devices.

In recent years, a far more comprehensive range of gadgets has been connected to the network. Vehicles, household appliances, medical equipment, energy meters and controls, streetlights, traffic controls, smart TVs, and digital assistants like Alexa from Amazon and Google Home have been targeted. According to industry analysts, more than eight billion devices are connected to the network, which is expected to rise to more than 25 billion by 2020. As these devices become more widely used, new applications for network technologies have emerged. According to some predictions, the Internet of Things (IoT)  might produce up to US$13 trillion in revenue by 2025.

Technology is projected to advance far beyond anyone’s greatest dreams with such a projection. However, as IoT devices become more common, IoT app development and security concerns and challenges will increase.

Weak/Default Password:

Password is an essential thing in terms of security issues. If the credentials are guessable or hard-coded, hackers have an open invitation to attack the device directly. With default passwords, the attacker may already know the password to the system. The Mirai malware exemplifies this form of attack.

The Mirai botnet, employed in some of the most extensive and most disruptive assaults, is perhaps the best example of the problems when devices are shipped with default passwords. The consumers are not told to change them as soon as they receive them.

Almost all IoT devices are vulnerable to password hacking and brute-forcing because of weak credentials and login data. Mirai malware was successful because it discovered susceptible IoT devices and infected them using default identities and passwords.

As a result, any firm that uses factory default credentials on its devices exposes both its business and its assets and their customers and sensitive data to a brute-force attack.

Lack Of Regular Updates:

Updates are essential for keeping our IoT devices secure and maintained. All Newly discovered vulnerabilities should be patched right away. Despite this, some IoT devices continue to be utilized without the required upgrades, rather than smartphones or laptops, updated automatically.

Another issue is that a device’s backup will be transmitted to the cloud during an update, resulting in a momentary outage. A hacker could obtain access to critical information if the connection is not encrypted and the update files are not password-protected.

IoT Boatneck Attacks:

A single malware-infected IoT device does not constitute a serious threat; it is a group of them that can bring anything down. To carry out a botnet assault, a hacker infects bots with malware and instructs them to submit thousands of requests per second to get the target down.

Blockchain hacks, IoT botnet miners, and data integrity manipulation represent a significant risk of flooding the open crypto-market and upsetting cryptocurrencies’ already volatile value and structure. If future cryptocurrency attacks are to be avoided, IoT apps, structures, and platforms based on blockchain technology must be regulated and regularly monitored and updated.

Hacking Your IoT Devices:

Your IoT device can be hacked by using different malware. Ransomware is one of them. Ransomware never destroys your files, and it just blocked your access to those files using encryption. When you try to open these files, the hacker that infected your device will demand ransom for decrypting your files.

Although there have been few reports of IoT devices being hacked with ransomware, the concept is swiftly gaining popularity among black hat hackers. However, wearables, medical devices, smart homes, and other smart devices and ecosystems may be in jeopardy in the future. The good side of this software is that it will not lock your data if the data is stored on the cloud, but on the other hand, it can control your device and disable its working for you, making it dangerous. For example, if your house is locked and you can’t open it, how will you feel!  

Lack Of Coordination With Manufacturers From IoT Part:

This is one of the most serious security concerns with IoT. Manufacturers will continue to create devices with poor security while there are no global IoT security standards. Manufacturers who have begun to include Internet connectivity in their gadgets may not necessarily consider “security” a critical component in their product development process.

For example, most Bluetooth-based devices remain visible after the first pairing. An innovative air conditioner can reveal your login details, and intelligent fingerprint locks can be opened using a Bluetooth key with the same MAC address as the padlock device.

Insignificant Privacy Protection:

IoT devices and connected services should handle sensitive data accurately, securely, and only with the end-permission. User’s This is true for both the storage and distribution of sensitive data.

When it comes to privacy protection, the vendor is crucial. A privacy breach could be caused by the vendor or a connected entity rather than an external attacker. Without explicit authorization, the vendor or service provider of an IoT device could collect information on consumer behavior for reasons such as market research. Several reports of IoT gadgets, such as smart televisions, listening in on domestic discussions.

Insufficient Physical Security:

Physical attacks affect only one device and necessitate physical contact. Because these assaults cannot be carried out in bulk through the Internet, we do not consider them one of the most severe security issues, but they are included.

A physical attack can be significant if it discovers a device key shared by all devices of the same model, compromising many devices. However, in that instance, we consider key sharing among all devices to be the most pressing issue, rather than physical security.


In this technological world where everything is becoming more innovative, IoT is becoming very popular and usable. Best-practice security measures, such as encryption, should be implemented in IoT devices. Vendors can help consumers, and security experts use their goods safely by providing documentation and interacting with them. Devices should be physically secured to make them more difficult for attackers. Finally, if a device is hacked, it should refuse the attacker’s programs and warn the user that something is wrong.