Layer 2 Sequencing Risks

Layer 2 sequencing risks involve the centralization and potential manipulation of transaction order by the operators of scaling solutions. While Layer 2 networks increase throughput, they often rely on a centralized sequencer to bundle and submit transactions to the main chain.

This sequencer has the power to order, delay, or censor transactions, which introduces a point of failure and a risk of front-running by the operator. If the sequencer acts maliciously, it can extract value from users or prioritize its own transactions at the expense of the network's decentralization.

Addressing these risks involves moving toward decentralized sequencers or utilizing cryptographic proofs to ensure the integrity of the ordering process. Users of Layer 2 protocols must be aware that the benefits of speed and low cost come with these unique governance and operational trade-offs.