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Here is a preview of the IoT/OT best practices compiled by our team of cybersecurity experts. For the entire list of best practices, please download a free copy of the ThreatLabz 2023 IoT and OT Threat Report.

Maintain comprehensive visibility into IoT devices.

Securing IoT devices begins with knowing what devices are connected to your network and what those devices are doing. Gain visibility into all IoT devices, including unmanaged devices, by utilizing solutions that analyze network logs to monitor communications and activity. Continuous visibility and awareness of what is connected to the network at all times is critical, no matter where devices are located.

Protect admin credentials and enable MFA.

Multi-factor authentication (MFA) requires users to enter a secondary mode of verification in addition to their password. This extra layer of security can thwart attackers from gaining access to user accounts if they have obtained credentials, preventing lateral threat movement from compromised user devices. 

Train employees on IoT device security.

Educate employees about the risks of connecting unauthorized devices to the network. Encourage them to report any new devices they connect and conduct security awareness training to help employees identify and avoid attacks on user devices. 

Implement a zero trust security architecture. 

For both IoT and OT, eliminate implicit trust. Enforce segmentation with least-privileged access to ensure users and devices can access only what they need. Any unsanctioned shadow IoT devices that need internet access should go through traffic inspection and, ideally, be blocked from corporate data via a proxy.

Zero trust is also key to preventing unplanned downtime and ensuring maximum productivity in industrial systems. Zero trust can minimize your attack surface, eliminate lateral movement, and accelerate OT/IoT convergence