The concept
Ethereum's security comes from staked ETH — validators put up capital, and if they misbehave, that capital is slashed. Restaking extends this idea: what if your staked ETH could also secure other protocols, oracles, bridges, and data availability layers?
Instead of each new protocol building its own validator set from scratch (expensive and hard), they can borrow Ethereum's security by tapping into restaked ETH. You, as the restaker, earn rewards from both Ethereum staking AND the additional protocols you secure.
How it works
- You stake ETH (natively or through liquid staking like Lido)
- You opt into a restaking protocol (like EigenLayer)
- Your staked ETH now also secures additional services (called AVSs — Actively Validated Services)
- You earn staking rewards from Ethereum PLUS rewards from each AVS you secure
- In exchange, you accept additional slashing conditions — if an AVS detects misbehavior, your restaked ETH can be slashed
Why it matters
Restaking is significant because it creates a shared security marketplace. New protocols no longer need to bootstrap their own security from zero. They pay restakers for the privilege of being secured by Ethereum's validator set.
For ETH holders, it means higher yields on staked ETH. For the ecosystem, it means faster and cheaper security for new infrastructure projects.
The risks are real
- Compounded slashing risk. You're now subject to slashing conditions from multiple protocols, not just Ethereum. A bug in any AVS could lead to your ETH being slashed.
- Smart contract complexity. Restaking adds layers of contracts on top of already complex staking systems. More complexity = more attack surface.
- Systemic risk. If a large amount of restaked ETH gets slashed simultaneously, it could cascade through DeFi (since much of it is also used as collateral in lending).
- Regulatory uncertainty. Staking rewards are already in a gray area. Restaking rewards add another layer of regulatory questions.
- Centralization pressure. Protocols with the most restaked ETH have the most influence over which AVSs succeed — creating potential power concentration.
Current state (2025-2026)
EigenLayer launched on Ethereum mainnet and quickly accumulated billions in TVL. Liquid restaking protocols (EtherFi, Puffer, Kelp) have emerged, creating receipt tokens (eETH, pufETH) that can be used in DeFi — adding yet another layer of composability and risk.
The restaking narrative is hot, but the long-term implications for Ethereum's security model are still being debated by researchers and developers.
Where it fits in your learning path
Restaking is advanced crypto territory. Before you get there, you need solid fundamentals — how ETH works as an asset, how staking economics function, how to evaluate risk. Korvex helps you build that foundation with zero-risk demo trading before you navigate DeFi's more complex layers.