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<h1 class="display-4 color-1 light">Blockchain and Security</h1>

<p class="lead bold">The blockchain is an undeniably ingenious invention – the brainchild of a person or group of people known by the pseudonym.</p>

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<p class="color-1">We're proud to announce the DevelopHowTo Student Internship Program. <a href="https://5studios.net/themes/dashcore/blog-post.html" class="bold d-inline-flex align-items-center color-1 ml-3">Learn more <i class="pe pe-7s-angle-right"></i></a></p>

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<h2 class="bold">What is BlockChain?</h2>

<p class="color-2">A blockchain, originally block chain, is a growing list of records, called blocks, which are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. By design, a blockchain is resistant to modification of the data.</p>

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<h2>How Does Blockchain Work?</h2>

<p class="color-2">Picture a spreadsheet that is duplicated thousands of times across a network of computers. Then imagine that this network is designed to regularly update this spreadsheet and you have a basic understanding of the blockchain.</p>

<p>Information held on a blockchain exists as a shared — and continually reconciled — database. This is a way of using the network that has obvious benefits. The blockchain database isn’t stored in any single location, meaning the records it keeps are truly public and easily verifiable. No centralized version of this information exists for a hacker to corrupt. Hosted by millions of computers simultaneously, its data is accessible to anyone on the internet.</p>

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<h2>Blockchain Durability and robustness</h2>

<p class="color-2">Blockchain technology is like the internet in that it has a built-in robustness. By storing blocks of information that are identical across its network, the blockchain cannot:</p>

<p>1. Be controlled by any single entity.</p>

<p>2. Has no single point of failure.</p>

<p>Bitcoin was invented in 2008. Since that time, the Bitcoin blockchain has operated without significant disruption. (To date, any of problems associated with Bitcoin have been due to hacking or mismanagement. In other words, these problems come from bad intention and human error, not flaws in the underlying concepts.)</p>

<p>The internet itself has proven to be durable for almost 30 years. It’s a track record that bodes well for blockchain technology as it continues to be developed.</p>

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<h2>The Blockchain & Enhanced security</h2>

<p class="color-2">By storing data across its network, the blockchain eliminates the risks that come with data being held centrally.

Its network lacks centralized points of vulnerability that computer hackers can exploit. Today’s internet has security problems that are familiar to everyone. We all rely on the “username/password” system to protect our identity and assets online. Blockchain security methods use encryption technology.</p>

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