Definition ∞ Shared security architecture describes a system design where multiple independent components or networks derive their security from a larger, more robust underlying system. This approach allows newer or smaller networks to benefit from the established security guarantees of a parent chain. It often involves delegating validation or consensus responsibilities to the primary network. This method aims to reduce the overhead and risk for individual components.
Context ∞ Shared security architecture is a significant topic in blockchain development, frequently discussed in crypto news concerning Layer 2 solutions and app-specific chains. Protocols employing this model, such as rollups or parachains, aim to inherit the security of a mainnet like Ethereum or Polkadot. The debate centers on the trade-offs between independent security and the efficiency gained from shared security.
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