The best approach to prevent a compromised IoT device from maliciously accessing data and devices on a local network is to isolate all IoT devices on a separate network , distinct from the main network that contains sensitive data and critical devices. This network segregation limits the potential damage a compromised IoT device can cause by restricting its access to only the isolated segment, preventing lateral movement to other devices
. Additional important measures include:
- Installing software firewalls on every network device to monitor and control network traffic, adding an extra layer of defense against unauthorized access
- Disconnecting IoT devices from the Internet when possible , especially if their internet connectivity is not essential, to reduce exposure to external threats
- Enhancing security settings on workstations and browsers to reduce risks from web-based attacks that could indirectly compromise IoT devices or network security
Together, these strategies create a layered defense that significantly reduces the risk posed by compromised IoT devices on local networks. References:
Memfault IoT Security Practices
Australian Cyber Security Centre IoT Device Security Tips
IT Exam Answers on IoT Device Network Security
IoT For All on IoT Network Isolation
StudyDocu on IoT Device Isolation
