The Internet of Things (IoT) has become the heart of technology, and for good reason. By 2023, over 14.4 billion connected devices were used worldwide, linking everything from household appliances to industrial machinery. The efficiency of IoT is unmatched, allowing devices to communicate, gather data and improve automatic processes. However, with this widespread growth comes a critical concern—security.
As more devices connect to networks, new vulnerabilities emerge, giving hackers more entry points to exploit. A breach in a smart home could expose personal data, while an industrial hack could lead to costly disruptions.
Many devices lack robust security features, especially when paired with inferior connectivity solutions like mobile broadband SIM cards which are prone to attacks where data could be intercepted or manipulated. Without the right security measures, IoT devices become easy targets for cybercriminals, highlighting the need for secure connectivity solutions.
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The myth: IoT devices are always secure
The idea that IoT devices are fundamentally secure is a common misconception that exists. Many believe that simply connecting a device to a network guarantees its safety from cyber threats. Unfortunately, this is not the reality. IoT devices are, in fact, highly vulnerable to security breaches if not properly secured with the right connectivity solutions.
The reality of IoT security
While IoT devices offer many benefits, their security is often overlooked during design and development. Some manufacturers prioritise cost-effectiveness and quick deployment over more robust security features. A good example of this is when CCTV users turn to Mobile Broadband SIM cards to power the connectivity of their devices. While the IoT device may be intrinsically secure, the introduction of a high-risk connectivity type like a MBB SIM card can comprise the entire network of devices. You can read our whitepaper on the hidden risks of mobile broadband SIM cards in IoT devices here.
As a result, through a lack of appreciation of the part connectivity plays in the security of the network, IoT devices often come with minimal security protections, making them easy targets for cyberattacks.
Common IoT security vulnerabilities
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Weak passwords: many devices come with default passwords that are never changed, providing an easy entry point for hackers.
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Unpatched software: manufacturers can sometimes neglect appropriate software updates, leaving devices exposed to known threats.
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Open network connections: devices connected to unsecured networks are particularly vulnerable to attackers that capture and manipulate data.
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Insecure connectivity solutions: utilising consumer connectivity to power IoT devices over choosing a more robust and purpose-built IoT connectivity solution can introduce opportunities for hackers to take control of devices.
Such vulnerabilities are not just theoretical but are risks that have been exploited in numerous high-profile cyberattacks, like the 2016 botnet attack.
In 2016, the authors of the malware botnet launched a DDoS attack on the website of a known security expert. The malware worked by scanning the internet for IoT devices that run on the central processing unit. If the default username and password were not changed from their default, the malware was able to hack into the device and infect it.
The authors of the malware released the source code in an attempt to hide the origins of the attack which meant the code was quickly replicated by other cybercriminals. This resulted in over a hundred thousand IoT devices being hijacked to bring down the domain register services provider.
Botnets continue to exist and have the potential to impact unsecured IoT devices.
The role of connectivity in IoT security
IoT devices depend on connectivity, but not all connectivity solutions are equal. The type of connectivity used can either strengthen security or expose devices to greater risks. When connected to open or poorly protected networks, devices become vulnerable to various cyber threats where attackers can manipulate data. This risk is particularly high in environments where multiple devices share the same network without suitable security measures in place.
Secure connectivity involves more than just using passwords or encryption. It requires a comprehensive approach from the connectivity supplier that includes regular updates, monitoring and the use of private networks to safeguard both the device and the data they handle. As exemplified in the Botnet attack, a lack of secure connectivity can result in unauthorised access and data breaches.
Common connectivity solutions and their limitations
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Public networks: public WiFi networks are often unsecured, making them prime targets for cybercriminals looking to intercept data.
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Unencrypted connections: data transmitted over unencrypted connections can be easily accessed and manipulated by hackers.
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Shared networks: in environments where devices share the same network without proper segmentation, a breach in one device can compromise the entire network.
How does Cellhire ensure secure IoT connectivity?
With a focus on providing tailored connectivity services, Cellhire stands at the forefront of IoT security, ensuring that devices remain protected in an increasingly connected world. Our approach to IoT security revolves around providing secure and scalable connectivity solutions.
Cellhire’s IoT connectivity is formed on our own MVNO meaning your devices can safely transmit data in over 191 countries through our secure IoT network. With over 430 relationships with operators worldwide, Cellhire provides protected and uninterrupted coverage to keep your devices online and secure at all times.
Our IoT SIM cards include a range of embedded security features. Each SIM card contains a private APN enabling a secure and private connection between your devices and the network, while also including fixed private IP options to safeguard your data by keeping devices isolated from the public internet. With secure traffic routing, your data is securely transmitted and routed through protected networks with controlled access for a consistent connection.
Additionally, Cellhire’s SIM management portal enables you to seamlessly manage your device's connectivity through secure and remote device access methods. This allows secure access to your devices from remote locations without exposing them to the vulnerabilities of public IPs. Our SIM management portal also provides further SIM and device security with IMEI lock, helping you to detect and react to unauthorised device use immediately.
By providing connectivity solutions that prioritise security, Cellhire enables businesses to deploy IoT devices with confidence, knowing that their networks and data are protected against potential threats.
The future of IoT security
As IoT technology progresses, so do the risks it faces. The future of IoT security will likely involve AI and machine learning to detect and respond to threats. AI can be trained to identify unusual traffic spikes that may signify a DDoS attack or recognise irregular device behaviour that could suggest a security breach. As AI and machine learning are adaptive, they can learn from new threats as they emerge, improving the resilience of IoT devices.
The development of new regulations will also play a part in the future of IoT security. Governments and worldwide organisations are recognising the need to regulate IoT devices, particularly as the consequences of security breaches are becoming more severe. For example, in the EU, the Cybersecurity Act is setting new standards for IoT devices by certifying products and services that meet rigorous security criteria.
The introduction of new regulations will likely enforce mandatory security updates for IoT devices. By requiring manufacturers to support their devices for a minimum period, these regulations can help minimise security gaps and prevent older devices from becoming easy targets for cybercriminals.
The need for secure connectivity solutions is greater than ever as the number of connected IoT devices shows no signs of slowing down. Businesses must recognise the importance of securing their IoT devices, not just through device-level protections, but through the networks these devices rely on.
As such, the myth that IoT devices are always secure is a dangerous misconception. Without the right connectivity solutions, devices are prone to a number of security threats that could compromise data and disrupt operations.
To safeguard your IoT devices, it’s vital to partner with a connectivity provider that understands the importance of security. Cellhire offers the expertise, technology and dedication needed to ensure that your devices roam seamlessly with reliable data transmission no matter where they are deployed. Don’t leave your IoT security to chance—choose Cellhire and protect your connected future.
