{"id":1102,"date":"2024-04-11T16:38:00","date_gmt":"2024-04-11T11:08:00","guid":{"rendered":"https:\/\/blog.coinfantasy.io\/?p=1102"},"modified":"2024-08-23T15:54:30","modified_gmt":"2024-08-23T10:24:30","slug":"how-can-blockchain-prevent-data-hacking","status":"publish","type":"post","link":"https:\/\/www.coinfantasy.io\/blog\/how-can-blockchain-prevent-data-hacking\/","title":{"rendered":"How Blockchain Defends Against Data Theft and Cyber Attacks?"},"content":{"rendered":"\n

<\/span>Cybercrime is a major threat to the smooth functioning of the world. It is both costly and dangerous. Blockchain is a digital ledger that records transactions and employs cryptographic encryptions, smart contracts, and decentralization to keep data safe. As it stands, blockchain data hacking is the best possible way to put an end to cybersecurity breaches. <\/span><\/p>\n\n\n\n

This article takes a look at how blockchain data hacking achieves the same and later explores real-life examples of data protection by blockchain.<\/em><\/span><\/p>\n\n\n\n

Blockchain and Data Hacking<\/b><\/h2>\n\n\n\n

Blockchain has applications in a variety of sectors. It is said to be one of the most disruptive technologies in the 21st century because of its versatility and ability to prevent security breaches. It is important to understand the basic building blocks of blockchain to understand how it achieves this level of security.<\/span><\/p>\n\n\n\n

As mentioned before, a blockchain is a digital ledger that records transactions in basic units called blocks. <\/span><\/p>\n\n\n\n

The data blocks are cryptographically sealed using a process called hashing. Hashing turns data into a series of symbols of a certain length. This series of hash is impossible to reverse engineer into its initial data. This makes transactions unchangeable.<\/span><\/p>\n\n\n\n

Each transaction consists of a stamp that represents the data block of the blockchain’s history. This blockchain data hacking stamp is necessary to verify the present holder of an asset. When an asset transfer occurs, the blockchain authenticates the transaction history, and the ownership transfer occurs.<\/span><\/p>\n\n\n\n

To change a transaction this hacker would have to reverse engineer the hash of the sealed block. But altering the hash means changing the hash output. The altered hash would be out of sync with the existing stamps. This instantly alerts the system, which then rejects the resealed block.<\/span><\/p>\n\n\n\n

What keeps Blockchain technology immune to hacking?<\/b><\/h2>\n\n\n\n

A blockchain ledger is decentralized. This means all nodes have access to the transaction history. A node is a computer that participates in the blockchain. For example, major cryptocurrencies have millions of nodes working worldwide. If a change has to be made on a blockchain, at least 51% of nodes must vote for it. In other words, 51% of the network should be convinced that the transaction is authentic and that the right owner is behind the transfer.<\/span><\/p>\n\n\n\n

For example, in the case of Bitcoin, the sender should send a private key proving their ownership and a public key that denotes the digital wallet where the Bitcoin is stored.<\/span><\/p>\n\n\n\n

After a transaction is stored on a block and becomes a part of the blockchain data hacking, altering it becomes close to impossible. Making a change to the transaction would require two things:<\/span><\/p>\n\n\n\n

  1. Reverse engineering the hashed block and altering the transaction data<\/span><\/li>
  2. More than 51% of nodes need to do this simultaneously because each node has a copy of the recorded transactions<\/span><\/li><\/ol>\n\n\n\n

    This makes it near impossible to hack a blockchain.<\/em><\/strong><\/p>\n\n\n\n

    However, theoretically, the possibility to reverse engineer a hashed block exists. But they have to face numerous possibilities\u2014-<\/span><\/p>\n\n\n\n