Restaking enables cryptocurrency holders to compound yields by securing multiple blockchain protocols with their already-staked assets. This advanced strategy leverages proof-of-stake (PoS) mechanisms to generate additional rewards beyond traditional staking, enhancing capital efficiency and network interoperability. Platforms like EigenLayer and Lido empower users to deploy ETH or liquid staking tokens (LSTs) across decentralized services, such as oracle networks or data availability layers, while maintaining ownership of underlying assets. Restaking promotes decentralized security, allowing smaller protocols to access shared trust networks, and offers opportunities for earning multichain yields. Risks include potential slashing penalties for protocol breaches and market volatility during prolonged staking periods. Ideal for validators and long-term holders seeking diversified exposure, restaking represents a strategic evolution in blockchain participation and passive income generation.