Explain the Concept of ‘Economic Security’ in Blockchain Consensus

Economic security refers to the cost an attacker must incur to successfully compromise a blockchain network, making the attack financially unviable. In PoW, this cost is the hardware and energy required.

In PoS, it is the cost of acquiring and potentially losing the staked assets (via slashing). A robust consensus mechanism ensures the cost of attack significantly outweighs the potential profit.