IoT security
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The document discusses the importance of prioritizing security from the beginning of the design process for IoT devices. It notes that many startups overlook security and focus only on features, and that security issues ignored early on are often forgotten later. It provides recommendations in several areas, including using secure memory and chips, enabling secure boot, implementing certificate-based authentication and encryption for networking, sandboxing apps, keeping systems patched, and monitoring devices for suspicious activity. The document aims to raise awareness of how security breaches can occur when it is not properly integrated from the start.
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- 2. Security from Begining of design ●Security at design phase not at the end phase ● Many of of the security issues overlooked at beginning are forgotten at the end ● Many of the startups doesn’t give priority to security but just feature complete. Even product owner are unaware about the depth of security to be implemented. ● Though we can count security implementation in IoT in 1-2-3 but having it in place is not so simple if not well thought at the beginning. Even lot of investment may to on toss. ● There are many ways to bring it in based on budget, volume, and product life. Abhishek Dwivedi
- 3. Hardware Security ●Make use of secured memory for sensitive data, such as ARM trustZone ●Make use of security chip for holding TSL private keys ●Use only secure boot enabled embedded processors for having a tamper proof SBC. ● Remove debug port/interfaces in production devices Abhishek Dwivedi
- 4. Network Security ●Keep communication secured by cryptography. TLS is a common for this purpose. ●Know the identity of the end node and edge. ●Where ever more threats are possible, keep the identity trusted. Instead of having only TLS, have certificates as well in place. X.509 is being adopted widely. ●Don’t connect to unsecure or loosely secured WiFi. High risk of man in middle attack. Such as over WPA2. Abhishek Dwivedi
- 5. Security at software ●Sandbox apps running on OS. Such as flatpack, snappy. ●Keep kernel level security enabled and enforced on Linux based OS. MAC and DAC enabled. Limit the access by right policy, don’t overlook while writing the access policy configuration. ●Regular patch, specially security patches. ●Wherever possible have OTA in place for immediately resolve found issues. Abhishek Dwivedi
- 6. Identity and Role based administration ●Have bookkeeping of identity of edge/node type and specific role. ●Implement device activity analytics service at device and cloud. ●Blacklisting of suspicious activity on immediate and analyze after from secure admin tunnel at the highest priority. Abhishek Dwivedi
- 7. Proven examples of security breaches ●Remote code execution and having root level privilege in device. ●DirtyCOW, a very much famous bug in kernel got fixed in recent in Kernel. ●In SSH, race condition letting root access. Abhishek Dwivedi
- 8. Thank you!! This is just brief. Each topic has options and details. Abhishek Dwivedi