What are IoT security concerns in Security+?
D3 · Architecture · CompTIA Security+ SY0-701IoT (Internet of Things) devices — smart thermostats, cameras, medical devices, industrial sensors — present unique security challenges due to their resource constraints and often poor security design.
Key IoT security problems:
🔑 Default/hardcoded credentials (never changed by users)
🔧 No patch mechanism or abandoned firmware
📡 Insecure communications (unencrypted protocols)
🔓 Large attack surface (millions of devices)
💊 Safety-critical (medical/industrial IoT)
Mirai botnet (2016) used IoT devices with default credentials for massive DDoS attacks.
Key IoT security problems:
🔑 Default/hardcoded credentials (never changed by users)
🔧 No patch mechanism or abandoned firmware
📡 Insecure communications (unencrypted protocols)
🔓 Large attack surface (millions of devices)
💊 Safety-critical (medical/industrial IoT)
Mirai botnet (2016) used IoT devices with default credentials for massive DDoS attacks.
IoT security best practices: change default credentials immediately, isolate IoT on a separate VLAN, apply firmware updates, disable unnecessary services. Network segmentation is critical — don't put IoT on the same network as business systems. Medical IoT (ICS/SCADA) has additional regulatory requirements.