IoT Security Anti-Patterns

The blog post discusses four anti-patterns in Internet of Things (IoT) devices that pose significant security risks. Firstly, the HTTP Pub/Sub pattern can be exploited to create a DDoS vulnerability as it does not validate if the receiver of the subscribed message wants the message or not. Secondly, running IoT devices themselves as TLS servers with self-signed server-side certificates can fail to maintain trust relationships and pose severe security risks. Thirdly, unencrypted bootloaders on IoT devices can expose sensitive data in memory when physical theft occurs. Lastly, directly connecting IoT devices to a database server for pushing data can lead to performance difficulties due to lock contention and polling databases for changes. The post suggests using message broker services exposed by HTTP APIs as a solution to these anti-patterns.