According to Odaily, open source L2 data analysis website L2BEAT recently proposed the introduction of a risk framework aimed at evaluating the security of data availability (DA) solutions. From the perspective of Ethereum, the security assumptions of external DA providers depend not only on the inherent characteristics of the DA solution itself, but also on how its security attributes match the data proofs published to the DA bridge on Ethereum.
The proposed risk framework includes several key measures. Economic security measures the degree of trust people have in the majority consensus, i.e., how much funds a committee needs to successfully deceive the DA bridge. Fraud detection mechanism category measures the effectiveness of users' self-protection when facing a malicious majority of committee members, such as validators.
Proof security assesses the ability of the DA bridge to verify data commitments without introducing additional trust assumptions. The exit window standard examines the scalability of the DA bridge, with particular attention to the withdrawal mechanism and the time allowed for users to exit during upgrades.
Accessibility measures the convenience of directly accessing data from the Ethereum network. This category distinguishes between DA solutions integrated into the Ethereum protocol (confirmed) and those not integrated.
This risk category is only applicable to Ethereum L2, and is not suitable for sovereign Rollups that independently use the DA layer.
