Seven member nations of the G7 Cyber Security Working Group - comprising Canada, France, Germany, Italy, Japan, the United Kingdom, and the United States - have identified quantum computers as a security threat and an economic risk for both public and private organizations. The group’s latest report states that quantum hacking is no longer merely a danger to critical national infrastructure, but a potential threat to public-key cryptography mechanisms that underpin blockchain wallets and crypto transaction authorization systems.
“Several recent developments anticipate the development of quantum computers capable of breaking widely used public-key cryptographic mechanisms,” the G7 report stated. The intergovernmental group’s warning highlighted the “harvest now, decrypt later” cybercrime tactic, where attackers steal and hoard encrypted data today to decrypt it in the future once quantum computers reach the necessary capabilities. Such future decryption capabilities also risk compromising digital signature schemes and enabling large-scale user impersonation.
To mitigate these cross-era security risks, the G7 urged the adoption of Post-Quantum Cryptography (PQC), which is specifically designed to protect systems against attacks from both classical and quantum computers. The G7 also called on governments worldwide to support ongoing research, foster public-private partnerships, establish national PQC strategies, and incorporate quantum security standards into their procurement requirements.
Two Largest Networks Prepare Upgrade Proposals
While currently operational quantum computers lack sufficient computational power to break Bitcoin’s cryptography, migration plans are already underway. An network improvement proposal dubbed BIP-360 is now under consideration to facilitate the implementation of new signature schemes. Executing the proposal will require broad consensus among Bitcoin developers, miners, businesses, and users.
Meanwhile, Ethereum researchers are planning a phased replacement of several critical cryptographic components that secure accounts, validators, and various applications across its network. One submitted proposal even calls for developers to rebuild Ethereum’s deposit contract to accommodate encryption key sizes significantly larger than those in the current system.
Early Trials on Solana Network
Compared to Bitcoin and Ethereum’s architectures, Solana is projected to have a smoother migration path because the network already uses the EdDSA signature scheme. The Solana Foundation has taken proactive steps by completing post-quantum signature trials on its testnet environment, while introducing a hash-based vault option as an additional security layer for its users.
Reported by Decrypt.
Also read: Windows Malware Disguised as Free Claude Drains 50 Crypto Wallets and Erases Own Traces
Disclaimer: This article is for informational and educational purposes only, not financial advice. Cryptocurrency assets are highly volatile and carry significant risk. Always do your own research (DYOR) and never invest more than you can afford to lose.
