# Importance of Securing IoT Devices in Cybersecurity Practices
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Chapter 1: The Overlooked Threat of IoT Devices
In today's digital landscape, organizations recognize the necessity of implementing cybersecurity measures. Most have adopted firewalls and some form of email security, whether through Microsoft 365 or their local email servers. However, an important question arises: have they adequately secured their cameras, thermometers, or printers?
This is not merely a theoretical concern. A real incident in 2018 at a Las Vegas casino serves as a stark reminder. Hackers exploited an insecure thermometer to access sensitive information regarding the casino's high-spending customers. For further details, this article may offer some insights, although the accompanying report is no longer accessible.
The motivations behind such attacks are clear, echoing the wisdom of Sun Tzu: "In warfare, the strategy is to evade the strong and target the weak."
IoT devices generally lack robust security measures, such as antivirus or endpoint detection and response (EDR) solutions. To effectively secure these devices, it's essential to fortify the surrounding network. Why is this critical? Because every connected device can serve as a gateway to others. The last thing you want is for someone to access your customer database via an IP camera.
Chapter 2: The Need for Cybersecurity Awareness
Despite ongoing threats, the necessity for annual cybersecurity awareness campaigns remains.
Section 2.1: Addressing Vulnerabilities
Given the challenges of implementing endpoint security on IoT devices, businesses must look at network-level solutions.
Network Segmentation
The first step is to segment your network. Ensure that IoT devices cannot interact with other parts of your network, only allowing essential communication for their operation. If feasible, isolate each IoT device; if not, group them strategically to minimize risk. For example, the last thing you want is for an attacker to disable your HVAC system in the server room via a compromised printer.
In some scenarios, like windmills, IoT or operational technology (OT) devices may be in remote locations. For these cases, establishing secure remote access is vital, allowing technicians to make adjustments without needing to be physically present each time.
Chapter 3: Challenges in Cybersecurity Workforce
The cybersecurity industry faces a shortage of skilled professionals. Are businesses and governments adequately addressing this issue, or is outsourcing the only viable solution?
Section 3.1: Enhancing Security Measures
Once you've established the basics, the next step is integrating a DNS security solution.
DNS Security
These solutions monitor all DNS requests associated with network communications, helping to identify malicious activity. Implementing them is usually straightforward: configure the DNS server and redirect all DNS requests through it via your firewall or switch. Blocking unauthorized requests ensures that no one can bypass this new layer of security.
Network Security Monitoring and Response
For those serious about securing their IoT/OT infrastructure, consider deploying Network Security Monitoring and Response solutions. These tools are typically placed near your core switch, tracking all network traffic—both incoming and outgoing. They provide insights into which devices are communicating, ensuring you can monitor various protocols, including SCADA.
Chapter 4: The Human Element in Cybersecurity
Businesses often hesitate to conduct social engineering audits, revealing a significant vulnerability: people. Why do organizations neglect training in this critical area?
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