Bitcoin, Ethereum 'Q-Day' Quantum Threat Could Arrive as Soon as 2030: Report
Decrypt5/6/2026Updated 5/6/2026

Smart Read
By the time Bitcoin and other networks are ready to defend themselves, it may already be too late, according to a new analysis....
Key takeaways
- 1Quantum computing threat to Bitcoin and crypto networks could materialize by 2030 according to new analysis.
- 2Networks may lack sufficient time to implement quantum-resistant defenses before potential Q-Day arrival.
- 3Cryptocurrency security infrastructure faces existential risk from advancing quantum computing capabilities.
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Why it matters
Indian retail crypto investors need to understand this emerging threat to their holdings' long-term security. Early awareness of quantum risks could influence investment decisions and push for industry-wide adoption of quantum-resistant protocols.
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