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Security Fundamentals & Crypto · Intermediate

Internet of Things Security

Practices for protecting connected devices with limited resources, long lifespans, and often weak default security.

Definition

IoT devices often ship with default credentials, rarely receive patches, and lack processing power for traditional security agents. Protections include network segmentation, changing defaults, firmware updates, certificate-based device identity, and lightweight cryptography. Regulations such as the EU Cyber Resilience Act and the US Cyber Trust Mark address IoT security.

Example

Smart cameras are placed on an isolated VLAN with no access to corporate servers.

Exam tip

Segment IoT devices and change default credentials; patching is often the hardest part.

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