Economic Security
Web3 / crypto economics
Economic security measures the cost required to attack, compromise, or takeover a blockchain network, typically quantified by the expense of acquiring sufficient stake or computational power to execute a 51% attack. This security derives from the total value staked or locked in mining infrastructure protecting the network. Higher economic security means an attacker must spend more capital to compromise the network than they could profitably gain. Economic security is distinct from cryptographic security—a network can be cryptographically sound but economically insecure if little value protects it, or economically secure even with modest technical safeguards. Example: Bitcoin's economic security is measured by its total hash rate and mining cost; attacking it would require purchasing and operating enough hardware to exceed global mining capacity, costing tens of billions of dollars. Smaller blockchains with less total stake face dramatically lower attack costs, making them economically less secure. Why it matters for crypto economics: Economic security directly determines network reliability and trustworthiness. Protocols must balance security spending with capital efficiency—over-securing wastes capital, while under-securing invites attacks. It's the primary mechanism through which cryptocurrencies substitute for institutional trust, making it central to understanding blockchain viability.
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