#CryptoSecurity101 data with inherent security qualities. It is based on principles of cryptography, decentralization, and consensus, which ensure trust in transactions. In most blockchains or distributed ledger technologies (DLT), data is structured in blocks, and each block contains a transaction or a package of transactions. Each new block is linked to all previous blocks in a cryptographic chain in such a way that it is almost impossible to manipulate. All transactions within the blocks are validated and agreed upon through a consensus mechanism, which ensures that each transaction is true and correct.

Blockchain technology allows decentralization through the participation of members in a distributed network. There is no single point of failure, and a single user cannot change the transaction record. However, blockchain technologies differ in some critical aspects of security.