The devices and gears we are 24/7 surrounded by are all Internet of Things, from simple smartphones to high-end crash sensors and functioning computers, and even cars. They have become our everyday partners, though, bringing convenience, they also come with certain vulnerabilities. But how does the issue of cybersecurity relate to the Internet of Things, and what can be done to mitigate these risks?
In this blog, I will address these issues in detail and offer you the best possible solution & practices to stay secure while leveraging your Internet of Things.
Brief Introduction to IoT & Cybersecurity
The Internet of Things (IoT) refers to a network of physical devices, things that are connected with embedded sensors, software, and other technologies. This enables the devices to exchange data among themselves and across systems. These devices range from domestic devices to complex industrial tools.
Cybersecurity is the process of protecting networks, devices, systems, and data from breaches and unpermitted access or criminal use. It is used to ensure the confidentiality, integrity, and availability of information. Almost everything relies on computers and the internet today, from grocery shopping to business reports, there is ample of your personal information stored. And cybersecurity is needed to keep it safe from theft, misuse, and cybercrimes.
How does the issue of cybersecurity relate to the Internet of Things?
Both cybersecurity and IoT share a close relationship because millions of devices are connected in IoT systems, and they share information consistently. And the information often includes personal, operational, and real-time data and communication. The more devices, the more the number of entry points for exploitation; therefore, these IoT networks need to be secured.
Moreover, since there is connectivity among millions of devices, even one unauthorized access can cause big damage, which can lead to severe privacy violations & bothersome incidents.
Related: Cloud Computing In IoT: Connect Millions Of Smart Devices
Internet of Things Vulnerabilities
Some solutions can’t detect devices connected to IoT networks, or which devices are interacting with the network. And hence, there are the following IoT security issues.
1. Weak Authentication & Default Passwords
People often keep their IoT devices on weak authentication and authorization, as those devices are often used, and this oversight makes them highly vulnerable to threats. For instance, people often use easy and follow universal passcodes across various devices and platforms, which makes them easily accessible to hackers. Moreover, rogue IoT devices, connected to the network, can steal data and launch attacks.
2. Encryption Issues
Data transfer between IoT devices is often not encrypted and which makes them highly vulnerable to malware attacks or other forms of theft and breach. Thus, sensitive information can be manipulated and tampered with.
3. Outdated Hardware & Software
IoT devices are often manufactured quickly and at low prices, which is why companies do not spend a significant amount of time and resources on developing robust built-in firmware for these devices. Therefore, these devices can be targeted easily, even with a basic cyberattack.
4. Insecure Networks
Since multiple devices are connected to the same network, if one gets hacked, accessing the rest is easy. Overlooking network segmentation and how IoT devices communicate makes it easier for hackers to impede. IoT systems rely on protocols such as Bluetooth, HTTP, and APIs that are vulnerable to exploitation if not properly secured.
5. Patching & Update Issues
Since the manufacturers don’t spend much on developing the IoT devices, often the devices are incapable of regular updates, patches, or security upgrades. Therefore, they can’t be easily fixed when encountering new threats and remain prone to hacking and massive cyber attacks like DDoS. This lack of attention from the manufacturer’s end forces users and businesses using these devices to take care of their protection separately.
IoT Security Best Practices
1. Device & Software Must be Updated
When buying these devices, keep in mind whether the vendor provides updates and consistently applies them. The software and hardware updates are important for IoT security. Check if the devices are automatically updated regularly, or if you need to visit the manufacturer’s website to check updates.
2. Do Not Use Default Passcodes
Avoid using the same login and passwords for every device, though it is easier for you to remember, but more easier for hackers to attack. Keep it unique and avoid using the same across devices.
3. Change the Router’s Name
Do not keep the given name by the manufacturer, as it can allow snoopers to identify the make or model. Though, do not disclose any personal identifiers in the name you choose.
4. Use a Strong Encryption Method
Prefer newer encryptions such as TLS/SSL, HTTPS, WPA3, or VPN. Older WPA or WEP versions are prone to brute force attacks.
5. Monitor Vulnerability Reports & Threat Intelligence Sources
Learn updates and be informed about new techniques, technologies, and processes used in recent hacks. This will help you detect any threats and trends beforehand.
Industrial IoT (IIoT) Cybersecurity
Industrial environments are digitized due to rapid technological advances, so these environments have become more exposed to cyber threats. Industry models work on massive connected machines, systems, and sensors; therefore, securing IIoT is different and complex than regular IoT security. One small cyberattack can disrupt the chain of machinery, affecting operations and human safety.
Summary
The growth of IoT devices and their real-world applications is continuing to give new ways to operate homes, businesses, and industries. And since there are millions of devices connected in a shared network and a security issue in one can affect all others, this is how IoT increases cybersecurity risks. According to reports, there is a staggering rise of 50% from 2024 in IoT security breaches, and nearly 75% of businesses were exposed to a cybersecurity breach in the past 12 months. With convenience and advancements come their own drawbacks, and IoT protocols like Zigbee, MQTT, Wi-Fi, and Bluetooth are needed more than ever now. These security measures work together to offer an efficient security ecosystem to different use cases, from low-powered smart sensors to sophisticated industrial systems.
By using a comprehensive security system of cryptographic protection, device security, WiFi protocols, high security authentication and authorization, and best practices in network design, IoT systems can be used in the most efficient ways. Also, the common cybersecurity issues related to IoT can be handled better.
Related: Top Cybersecurity Careers in 2026
