What is restaking?

Reusing tokens that are already staked as security for additional services, in exchange for additional rewards.

A restaked position can be penalized by more than one system, so a fault in any of them can cost the underlying stake. Restaking is newer than ordinary staking and is not offered by most exchanges.

The idea is that security is expensive to build from scratch. A new bridge, oracle, or data availability layer needs a large pool of capital at risk before anyone trusts it, and bootstrapping that from nothing is slow. Restaking lets an existing pool back several systems at once. The catch is in the word "at once": the same capital is now answerable to several sets of rules.

How it works

1. Stake normally. Tokens are staked with the base network's validator set, earning the protocol's own rewards.
2. Opt in to additional services. Through a restaking protocol, the staker agrees that the same stake also secures other systems, each with its own conditions and its own penalties.
3. Operators run the work. Node operators perform whatever each service requires, and stakers delegate to them.
4. Rewards accumulate from each service, on top of the base staking yield.
5. Penalties accumulate too. Each service can slash for its own defined faults. See slashing.

The exposures compound rather than diversify. Ordinary staking risks one rule set. A stake restaked across four services risks five, and a fault in the least careful one reaches the same principal. Some designs add liquid restaking tokens on top, which layer a market price and a redemption queue over an already correlated position.

Example

Illustrative. A staker earns 3.5% from base staking and opts into three additional services paying 1.2%, 0.8%, and 0.6%, for a headline 6.1%.

The extra 2.6% is compensation for exposure to three additional slashing rule sets, each written by a different team, each newer than the base protocol. If any one of them slashes 10% for a fault its operator commits, the loss is 10% of the whole principal, not of the 2.6%. Roughly four years of the extra yield is erased by one event.

That asymmetry is the thing to weigh. The yield is additive and small; the penalty is on the full stake.

Why it matters when you buy

Most exchanges do not offer restaking, so encountering it usually means using a protocol directly, with the smart contract and operator risk that implies. If you hold a proof of stake asset and are comparing what to do with it, the yield pages show where plain staking is offered and on what terms, and staking for beginners covers the base case.

Related terms

staking — the base activity being reused; slashing — the penalty each service can apply; liquid restaking token — a tradeable claim on a restaked position; validator — who performs the work; liquid staking token — the simpler one-layer version; unbonding period — the wait to exit.

Questions

How is this different from staking?

Ordinary staking secures one network under one set of penalty rules. Restaking commits the same tokens to additional systems, each of which can penalize the stake independently.

Can I lose more than the extra rewards?

Yes, and that is the central point. A slashing event applies to the principal, so a single fault in one service can wipe out years of the additional yield that motivated the position.

Is it available on exchanges?

Rarely, and where offered the terms and jurisdiction restrictions differ from plain staking. Most participation is through protocols directly, which adds smart contract and operator risk on top.