L2 Security

Definition ∞ L2 security refers to the mechanisms and guarantees that protect funds and operations on Layer 2 scaling solutions, such as rollups or sidechains. These solutions process transactions off the main blockchain but derive their security assurances from the underlying Layer 1 network. Robust L2 security ensures that assets remain safe and operations are trustworthy, even when transactions occur off-chain. It is critical for user confidence.
Context ∞ L2 security is a paramount concern in the ongoing development and adoption of blockchain scaling solutions. News often highlights audits, bug bounties, and security incidents related to Layer 2 protocols, underscoring the continuous need for vigilance. Maintaining a strong security posture for L2s is critical for user confidence and the overall stability of the decentralized ecosystem as it expands.