Blockchain Security

Blockchain Security

Igor Pejic

Financial technology & blockchain specialist

The blockchain is often hailed for its immaculate security, its immutability, and the protection of its users’ identities. To uncover the true level of security, Igor discusses the mechanism itself, transaction validation and other criticisms.

The blockchain is often hailed for its immaculate security, its immutability, and the protection of its users’ identities. To uncover the true level of security, Igor discusses the mechanism itself, transaction validation and other criticisms.

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Blockchain Security

9 mins 41 secs

Overview

The blockchain is often hailed for its immaculate security, its immutability, and the protection of its users’ identities. However, there have been many cases where exchanges have been hacked and cryptocoins have been stolen. These hacks can be attributed to lax security standards not in the blockchain-system itself, but in the management and storage of data such as private access keys. The blockchain itself has proven extremely resilient and as more transactions are added to the chains of cryptocurrencies such as bitcoin, the safer the mechanism becomes.

Key learning objectives:

  • Can attackers change blockchain history?

  • Explain why nodes would invest resources/computing power into the blockchain network

  • What is a 51% attack and why is it unlikely?

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Summary
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Expert
Igor Pejic

Igor Pejic

Igor is the author of “Blockchain Babel: The Crypto-Craze and the Challenge to Business.” The book was a Financial Times Book of the Month and a finalist in the Bracken Bower Prize. He has published more than 50 articles on blockchain and financial technology. Moreover, Igor is the Head of Marketing and Product Management for BNP Paribas Personal Finance in Austria.

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