Sequencing Layer Security

Definition ∞ Sequencing layer security refers to the measures and protocols implemented to protect the integrity and fairness of transaction ordering within a blockchain’s sequencing layer, particularly in layer-2 solutions. This security aims to prevent malicious actors from reordering, censoring, or front-running transactions. Robust sequencing layer security is essential for reliable and equitable operation of scaling solutions. This protects user interests.
Context ∞ News about rollup technology and layer-2 scaling frequently focuses on sequencing layer security. Reports on new designs for transaction ordering, such as decentralized sequencers or proposer-builder separation, emphasize their role in safeguarding user funds and transaction fairness. Maintaining strong security at this layer is paramount for the widespread adoption of scaled blockchain systems and their applications.