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Bernard Marr

Bernard Marr is a world-renowned futurist, influencer and thought leader in the fields of business and technology, with a passion for using technology for the good of humanity. He is a best-selling author of over 20 books, writes a regular column for Forbes and advises and coaches many of the world’s best-known organisations. He has a combined following of 4 million people across his social media channels and newsletters and was ranked by LinkedIn as one of the top 5 business influencers in the world.

Bernard’s latest books are ‘Future Skills’, ‘The Future Internet’, ‘Business Trends in Practice’ and ‘Generative AI in Practice’.

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Bernard Marr ist ein weltbekannter Futurist, Influencer und Vordenker in den Bereichen Wirtschaft und Technologie mit einer Leidenschaft für den Einsatz von Technologie zum Wohle der Menschheit. Er ist Bestsellerautor von 20 Büchern, schreibt eine regelmäßige Kolumne für Forbes und berät und coacht viele der weltweit bekanntesten Organisationen. Er hat über 2 Millionen Social-Media-Follower, 1 Million Newsletter-Abonnenten und wurde von LinkedIn als einer der Top-5-Business-Influencer der Welt und von Xing als Top Mind 2021 ausgezeichnet.

Bernards neueste Bücher sind ‘Künstliche Intelligenz im Unternehmen: Innovative Anwendungen in 50 Erfolgreichen Unternehmen’

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Blockchain And The Internet Of Things: 4 Important Benefits Of Combining These Two Mega Trends

2 July 2021

The Internet of Things (IoT) and blockchain are two topics which are causing a great deal of hype and excitement, not just in the technology circle but in the wider business world, too.



Many say they are set to revolutionise all aspects of our lives, while others point out that there is a lot of hot air around both ideas, and a lot is yet to be proved.

However, the idea that putting them together could result in something even greater than the sum of its (not insignificant) parts, is something which is starting to gain traction.

In principle, it makes a lot of sense. IoT is a term used to describe the ongoing proliferation of always-online, data-gathering devices into our work and personal lives. Blockchain is an encrypted, distributed computer filing system designed to allow the creation of tamper-proof, real-time records.

Put them together and in theory, you have a verifiable, secure and permanent method of recording data processed by “smart” machines in the IoT.

Why combine blockchain and IoT?

There are several clear advantages to the idea of building smart machines able to communicate and operate via blockchain.

Firstly, there is the issue of oversight. With data transactions taking place between multiple networks owned and administered by multiple organisations, a permanent, immutable record means custodianship can be tracked as data, or physical goods, pass between points in the supply chain. Blockchain records are by their very nature transparent – activity can be tracked and analysed by anyone authorised to connect to the network.

If something goes wrong, breakages occur, data leaks where it shouldn’t, then the blockchain record makes it simple to identify the weak link and, hopefully, take remedial action.

Secondly, the use of encryption and distributed storage means that data can be trusted by all parties involved in the supply chain. Machines will record, securely, details of transactions that take place between themselves, with no human oversight.

Without the private keys giving write-access to the blockchain (which in this case would be held by machines), no human will be able to overwrite the record with inaccurate information.

Thirdly, the “smart contract” facilities provided by some blockchain networks, such as Ethereum, allow the creation of agreements which will be executed when conditions are met. This is likely to be highly useful when it comes to, for example, authorising one system to make a payment, when conditions indicate that delivery of a service has been provided.

Fourthly, blockchain offers the potential of greatly improving the overall security of the IoT environment. Much of the data generated by IoT is highly personal – for example, smart home devices have access to intimate details about our lives and daily routines. This is data that needs to be shared with other machines and services in order to be useful to us. But it also means there are far more openings for hackers to potentially attack us. Business and governments invested in IoT also have to contend with this increased scope for a data breach by criminals, rivals or foreign enemies.

Allowing access to data from IoT devices to be managed through blockchains would mean an additional layer of security that any malignant actor would have to bypass – one that would be secured by some of the most robust encryption standards available.

Centralised v decentralised systems

Above the fact that it will offer new opportunities, it is even possible that blockchain and IoT convergence will become a necessity at some point. If the current IoT paradigm – devices connected via a centralised cloud storage and processing service – continues, then systems are likely to become increasingly bloated, as data volumes, as well as the number of connected devices, continue to increase.

These cloud services are likely to become bottlenecks as the amount of data pumped through them increases. Blockchains can remedy this thanks to their distributed nature. Rather than an expensive, centralised data centre, a blockchain data storage network is duplicated across the hundreds (or potentially thousands, or millions) of computers and devices which make up the network. This huge amount of redundancy means data will always be close at hand when it’s needed, cutting down transfer times and meaning one server failure will be of no consequence to business activity.

Blockchain and IoT are both technologies which have big promises to keep. Both are already being widely and enthusiastically adopted by industry and the public sector, and there is a great deal of speculation about where each of them will lead. Combining them could be the key to ensuring those promises are kept while minimising the security and business risks that go hand-in-hand with technological change.

Business Trends In Practice | Bernard Marr
Business Trends In Practice | Bernard Marr

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Bernard Marr is a world-renowned futurist, influencer and thought leader in the fields of business and technology, with a passion for using technology for the good of humanity.

He is a best-selling author of over 20 books, writes a regular column for Forbes and advises and coaches many of the world’s best-known organisations.

He has a combined following of 4 million people across his social media channels and newsletters and was ranked by LinkedIn as one of the top 5 business influencers in the world.

Bernard’s latest book is ‘Generative AI in Practice’.

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