In a digital world where data breaches and cyberattacks are becoming increasingly commonplace, the demand for secure technology is more important than ever Enter blockchain, a technology hailed as an alternative to a security role in the digital age. But what exactly does blockchain do? Let’s dive into the mechanisms underlying blockchain technology’s robust security.
Decentralization: The foundation of security
At its core, the blockchain is decentralized, which means that instead of residing on a single server or location, copies of the blockchain are distributed across multiple computers, called nodes This decentralization is important for security because it removes a single failure from there. Hackers can’t just attack a single server and gain access to the system; More than half of the nodes would need to be compromised to change the blockchain, a nearly impossible feat due to the amount of computing power required
Cryptography: The Door and Key
Blockchain uses advanced cryptography to protect the data it holds. Each block in the chain has a unique cryptographic hash of the previous block, creating a chain of blocks that is nearly impossible to determine without changing every single piece of information that changes the hash of the block and creates blocks that consume are all invalid, unauthorized changes easily detected