Blockchain in cybersecurity enhances data protection by leveraging its decentralized nature to eliminate single points of failure. It provides secure data storage, real-time monitoring, and enhanced encryption methods to protect against hacking, data breaches, and fraud. With blockchain, cybersecurity systems benefit from immutable transaction logs, which enable greater transparency and traceability. Additionally, blockchain-based identity management solutions prevent unauthorized access, ensuring that only verified individuals can access sensitive systems and data, offering a robust defense against cyber threats.