One of the ongoing threats to the internet of things is security. Millions of network devices result in millions of potentially vulnerable items that could be co-opted by attackers. Using a blockchain to deliver software updates, along with systems such as trusted computing modules, IoT devices could be at least partially shielded from attacks by requiring an attacker to disrupt the entire chain, not just a specific device. However, this would take careful engineering, and the first few attempts at this form of security will likely fail due to implementation bugs.

Other interactions with blockchain include logistics, where companies tie the movements of their delivery vehicles to a consortium network that broadcasts each package movement across the entire network, improving delivery and identifying issues. For instance, a truck hitting a roadblock and updating its travel across a consortium of logistics firms would allow other trucks to route around, thereby improving deliverability.