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Ethereum prepares for the quantum computer threat and changes its network cryptography

The Ethereum Foundation unveiled a roadmap for transitioning to protection against quantum computers — technologies that in the future could break current encryption methods and gain access to user wallets. As part of the plan, replacing existing digital signatures with more resilient algorithms (for example, hash-based) is being considered, along with updating key network components, including wallets and validators

The Foundation has already designated this direction as a strategic priority and created a dedicated team to implement solutions: plans include testnets, new cryptographic tools, and a gradual transition of the entire ecosystem to "post-quantum" security. Although powerful quantum computers do not yet exist, Ethereum believes preparation must begin in advance due to the complexity of updating the entire network