L2 Security Model

Definition ∞ An L2 Security Model describes the framework of cryptographic assurances and economic incentives that protect a layer-2 scaling solution. This model specifies how the layer-2 system relies on the underlying layer-1 blockchain for data availability and dispute resolution. It outlines the mechanisms ensuring that layer-2 transactions are ultimately as secure as those on the main chain. Understanding this model is crucial for assessing the trust assumptions of any given layer-2 protocol.
Context ∞ The L2 Security Model is a central discussion in news covering the development and adoption of various blockchain scaling technologies. Debates often concern the varying degrees of security inheritance and the potential trade-offs involved. Continued innovation focuses on strengthening these models to provide robust, scalable, and verifiable transaction processing.