According to Mars Finance, on May 6, Vitalik published an article categorizing the security of Ethereum Rollups into three phases: Phase 0: The security council can completely veto the proof system, with centralized control. Phase 1: Intervention requires the consent of 6 out of 8 members, with an external member threshold, and intervention is limited. Phase 2: Intervention only occurs in the case of verifiable errors, and arbitrary adjudication is not allowed. He suggested that as trust in the proof system increases, a gradual transition from Phase 0 to Phase 2 should occur. Phase 0 has the lowest security and should be avoided for long-term residence. Rollups should at least start from Phase 1, while focusing on the audit and maturity of the proof system.