Buterin: “Ethereum Faces No Quantum Threat or Slowdown,” Unveils Final Defense Strategy

▲ Ethereum (ETH) / AI-generated image

As the computational power of quantum computers threatens the blockchain ecosystem, Ethereum (ETH) has begun constructing a sophisticated defense system aimed at simultaneously enhancing network processing speed and strengthening security.

According to crypto media outlet Cointelegraph on February 26 (local time), Ethereum co-founder Vitalik Buterin presented a detailed new technical roadmap designed to protect assets from quantum computer attacks while dramatically reducing transaction finalization times. Emphasizing the need for fundamental changes to the Ethereum protocol to proactively address potential future threats, Buterin outlined a phased implementation plan.

The core of Buterin’s proposed strategy is the adoption of quantum-resistant signature schemes and the implementation of Single Slot Finality (SSF). To prepare for the possibility that current cryptographic algorithms could be broken by quantum computers, the plan focuses on applying lattice-based cryptography and using signature aggregation technology to bundle thousands of signatures into one, thereby reducing network load. These technological advancements play a crucial role not only in strengthening security but also in improving Ethereum’s scalability.

The roadmap also focuses on maximizing network efficiency. Buterin is exploring ways to reduce the current transaction finalization time of about 12 minutes to just seconds—within a single slot. With Single Slot Finality, users would be able to secure near real-time transaction completion, marking a decisive turning point in Ethereum’s competitiveness as a practical financial infrastructure.

A hard fork scenario as an emergency response plan in the event of an unexpected quantum attack was also discussed. Buterin suggested that backup measures are in place to safely restore the network and protect users’ assets even in a worst-case scenario. This provides investors with psychological reassurance against technical uncertainties and enhances confidence in the sustainability of the Ethereum ecosystem.

Beyond simple functional improvements, Ethereum is preparing for a major structural transformation to withstand the coming era of quantum computing. Buterin’s announcement carries a declarative message about securing technological leadership, and future upgrades will depend on community consensus and technical precision. Global attention is focused on whether Ethereum can capture both security and speed to lead the technological standard of the digital asset market.

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