Securing industrial IoT networks require specialized tools and expertise to protect the critical data that flows through these networks on a daily basis. IIoT (Industrial Internet of Things) networks have been in existence for over 20 years, but it wasn’t until 2008, with the introduction of the Open Platform Communications Unified Architecture standard, that these networks really began to take off.
However, the same technological advancements that facilitated the expansion of IIoT networks also opened the door to potential cyber threats. IIoT networks are particularly susceptible to attacks because once hackers gain entry, they can take control of exposed devices, applications, and the entire system, potentially leading to devastating consequences. A successful attack on a medical IIoT device, such as a heart monitor, could have life-threatening implications.
To address these vulnerabilities, it’s crucial to establish a robust security strategy for IIoT networks. Cellular IIoT, using LTE Machine Type Communication or narrowband IoT, is considered safer than Wi-Fi due to its ability to lock SIMs to specific devices, reducing the potential for widespread network breaches.
In addition to the underlying network architecture, there are several important security considerations for IIoT networks:
1. Inspecting inbound and outgoing data traffic: Monitoring traffic allows IT teams to detect and prevent potential DDoS attacks and identify compromised devices, enabling them to take defensive actions.
2. Encrypting data end-to-end: Data encryption ensures that only authorized personnel with the encryption key can access the data as it travels through the network, utilizing multifactor authentication for added security.
3. Utilizing segmentation and firewalls where applicable: Segmentation limits access to the network, preventing attackers from using compromised devices to infiltrate the entire network, while firewalls create internal barriers between network segments.
In addition to these security measures, IIoT management software serves as a valuable resource for securing industrial IoT networks. These tools are designed to support both new and legacy manufacturing equipment, providing specific gateways to connect older machinery to the network and incorporate modern assets such as environmental and motion sensors. The data collected from these sensors and devices can be transmitted to cloud or edge servers using a variety of wireless or wired connections, each with its own specific purpose and range.
Furthermore, IIoT management software offers additional security features to safeguard devices and enable IT teams to collect and act on device data in near-real time. These platforms are available from various cloud providers and vendors, providing an additional layer of protection for IIoT networks.
In conclusion, securing industrial IoT networks is a complex but essential endeavor, requiring specialized tools, expertise, and strategic implementation to safeguard the valuable data and systems within these networks. As IIoT networks continue to evolve and expand, staying ahead of potential cyber threats is paramount in ensuring the safety and integrity of these critical systems.