The Ethereum Foundation announced a shift in focus from pursuing proof speed to strengthening security, proposing to achieve a 128-bit provable security threshold by the end of 2026 as an "uncompromising" standard. The foundation also requires zkEVM projects to uniformly assess their actual security levels using official tools. The foundation stated that although industry has achieved near real-time block proofs, some mathematically-based security assumptions are being overturned, which means that "speed without stability" could pose systemic risks, and there is even an extreme threat of forged proofs tampering with L1 state. EF outlined a three-phase plan: by early 2026, unify security assessments; by mid-2026, reach at least a 100-bit security threshold; and by the end of 2026, complete 128-bit security with smaller proof sizes. (cryptoslate)