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Enterprise Security Magazine | Monday, June 21, 2021
To reap the benefits of IoT devices, businesses must recognize and address the security risks posed by IoT hardware and software, as well as take steps to protect their gadgets, networks, and data.
FREMONT, CA: Numerous stakeholders are involved in ensuring the security of IoT devices. First, manufacturers of devices must design their hardware to be resistant to attack. Second, software developers must write secure code for devices to run. Third, engineers responsible for deploying and managing IoT devices must take precautions to mitigate security risks. Finally, end-users who use the Internet of Things to access data or systems must keep the devices secure and avoid granting access to unauthorized users. While each of these roles has a unique position in IoT security, they can all use a standard set of guidelines to assess and resolve potential IoT security issues.
Identification
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Every stakeholder should make a concerted effort to identify unauthorized devices that appear on an IoT network. These are intangible assets that may disappear at any time and then reappear in a different physical and network location. Therefore, accurate information is critical for comprehending and classifying these devices.
Behavior Recognition
Once a security team has discovered all devices on an IoT network, it needs to understand each device's intended purpose to interpret and forecast the device's behavior patterns: the types of data it will generate and the times it will connect and disconnect. Finally, these patterns for anomalies are examined to identify potential breaches.
Calculation of risks
Not all IoT devices are equally dangerous. For example, a medical device that regulates a patient's heart rate poses a greater risk than an IoT device that controls the brightness of a lamp. To assess risk accurately, stakeholders must create risk profiles for each device connected to their networks. They can then appropriately prioritize security incidents and determine which devices to update when a security vulnerability affecting a device they manage is announced.
Policies development
After identifying and classifying all network devices, IT and security teams can establish segmentation policies to isolate high-risk, vulnerable, or mission-critical devices from the rest of the network. Segmentation policies can also be used to regulate how devices communicate, manage access to other network resources, and ensure that each new machine is evaluated and secured in real-time.
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