Security Bond

A security bond is the amount of capital a validator must lock up as collateral to participate in the consensus process. This bond serves as a guarantee of honest behavior; if the validator acts maliciously, the protocol can seize this capital to compensate the network or other users.

The size of the bond is a key factor in determining the economic cost of an attack, often referred to as the cost of corruption. By requiring a significant bond, the protocol ensures that validators have a vested interest in the long-term health and security of the system.

This concept is foundational to financial derivatives in crypto, as the bond effectively collateralizes the validator's promise to uphold the protocol's rules. It is a core component of the risk management architecture in any proof of stake system.