IoT security challenges
IoT is a complex network of billions of Internet-connected devices that collect and transmit huge amounts of data across of a wide range of devices (sensors, robots, machinery, mobile apps, digital assistants, etc.) and integrated systems. Also, the data have to pass different administrative boundaries with different policies. Certainly, all of it creates challenges for protecting the IoT ecosystem.
First, companies and organizations have to ensure privacy and confidentiality of user data. Second, data communications should be protected at all levels. So, when building an IoT solution, take care of the “right” data delivery including the right place, time, and form. Third, make all interactions traced and monitored so that suspicious activities will be instantly detected.
There are many IoT security risks and challenges you should know and prevent when developing an IoT project. In terms of increased worry about cyber attacks and data privacy, companies have to establish new security models and integrate innovative technologies. In the IoT world, the use of Blockchain is an emerging trend promising to solve most or even all of IoT security issues.
What is Blockchain
Blockchain is a technology of the distributed ledger that maintains a continuously increasing number of transactions. Representing an immutable and inconvertible record and being based on cryptographic algorithms, Blockchain provides data security and protects data.
As Blockchain is decentralized, there is no central authority or regulatory body required for transaction approval and management. A distributed technology nature makes computer servers to come to a consensus, allowing transactions to be carried out anonymously and without intermediaries.
Blockchain is also about trust: cryptography is used to prevent technical data forge and distortion. In the chain of blocks, each block contains a hash serving as a link to the previous one. Thus, it’s impossible to substitute an intermediate block in the finished chain.
So, Blockchain provides a high-security level. While the tool is the same, it has many successful applications in a variety of business industries. Mika Lammi, Kinno’s Head of IoT Business Development, Kouvola Innovation Ltd, said: “I believe Blockchain to be one of the truly disruptive and innovative application areas in the world now, and that it will create huge waves across all imaginable business sectors”.
Blockchain and IoT
Coming up with decentralized, autonomous, and data protection capabilities, Blockchain has a great potential to secure the IoT ecosystem. In the Internet of Things, Blockchain can keep an immutable record of connected devices’ activities and automatically maintain the history of their communications.
What’s more, by integrating the technology, companies and organizations can allow trustless safe message exchanges between IoT devices. In this case, Blockchain will work like in financial transactions: data is transmitted between multiple devices and delivered to the places required. To enable peer-to-peer messaging, businesses can integrate Ethereum smart contracts serving as the agreement between two parties.
For example, let’s take Blockchain and IoT linked together to improve manufacturing operations. Here the use of Blockchain can enable smart devices to not only exchange data, but even automatically execute financial transactions. IoT devices monitor machinery and equipment health, alert managers about problems, and order repairs when required.
In the agriculture industry, farmers can place IoT devices to collect data about crops in order to ensure an efficient functioning of the irrigation system. Smart contracts describe how the solution parts (analytics system, sensors, etc.) should behave based on the conditions defined. This approach helps provide automatic water management.
Blockchain advantages for IoT security:
- Immutable record of all data communications
- Monitoring of suspicious activities
- Prevention of data forge and distortion
- Peer-to-peer messaging between IoT devices
- Autonomous functioning of smart devices
Today, Blockchain is one of the most promising trends in IoT security field. Decentralized and data protection capabilities make Blockchain a perfect part of IoT solutions. Understanding the technology prospects, many companies have already integrated Blockchain to solve IoT security challenges.