Decentralization in cybersecurity refers to distributing control, data, or decision-making across multiple nodes or participants in a network, rather than relying on a single central authority. This approach enhances security and resilience by reducing single points of failure, making it harder for attackers to compromise the entire system. Decentralized systems are foundational to technologies like blockchain and peer-to-peer networks, where trust is established collectively. By spreading responsibilities and data, decentralization can improve transparency, fault tolerance, and resistance to censorship or malicious attacks.