Jan 10, 2024 3:07:14 PM

What is Tampering in Blockchain?

Tampering in refers to the unauthorized alteration of blockchain data. Due to the inherent security features of blockchain technology, tampering is extremely difficult to achieve. It involves modifying data that has already been confirmed and added to the blockchain, which is considered immutable in a typical blockchain network.

How Blockchain Prevents Tampering

  1. Immutability: Once data has been added to the blockchain, it cannot be changed without altering all subsequent blocks, which requires from the network.
  2. Consensus Mechanisms: Blockchain networks use consensus mechanisms like (PoW) or Proof of Stake (PoS) to validate transactions and blocks, making unauthorized changes nearly impossible.
  3. Cryptography: Each block is cryptographically linked to its predecessor, ensuring the of the entire chain.

Neo Blockchain and Tampering

  • dBFT: uses a consensus mechanism called Delegated Byzantine Fault Tolerance (dBFT), which is designed to resist tampering by ensuring that consensus is reached only if a supermajority (66.6%) of consensus nodes agree.
  • : Neo integrates digital identities, which can be used to verify the participants in the network, adding an additional layer of security against tampering.

Consequences of Tampering

  • Loss of Trust: Any successful tampering can lead to a loss of trust in the blockchain network.
  • Financial Loss: Tampering can result in financial losses for users if it leads to theft or double-spending.
  • : In some cases, tampering or the attempt to tamper may lead to a network fork, creating a new version of the blockchain.

Tampering with a blockchain is highly challenging due to the technology’s design to ensure security and trust. The Neo blockchain’s additional features, such as dBFT and digital identity, further enhance protection against tampering.