Blockchain Security
Blockchain security refers to the principles, practices, and technologies used to protect blockchain networks, applications, and data from attacks, vulnerabilities, and unauthorized access. It encompasses securing the underlying distributed ledger, smart contracts, consensus mechanisms, and cryptographic components. This field focuses on ensuring the integrity, confidentiality, and availability of blockchain systems in decentralized environments.
Developers should learn blockchain security when building or auditing decentralized applications (dApps), cryptocurrencies, or enterprise blockchain solutions to prevent exploits like 51% attacks, smart contract bugs, or private key theft. It is crucial for roles in DeFi (Decentralized Finance), NFT platforms, and supply chain tracking where financial or sensitive data is at stake. Understanding blockchain security helps mitigate risks in trustless systems and comply with regulatory standards.