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Vitalik buterin warns: quantum computing threatens crypto by 2028

Vitalik Buterin | Quantum Computing Threatens Crypto Confidence by 2028

By

Ethan Wang

Nov 20, 2025, 12:11 AM

Edited By

Chloe Dubois

Updated

Nov 20, 2025, 06:48 PM

2 minutes to read

A visual representation of quantum computing impacting digital currency symbols, highlighting Ethereum and other cryptocurrencies with a dark background.
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A growing concern from Vitalik Buterin highlights how advancements in quantum computing may jeopardize trust in cryptocurrencies by 2028, leading to heated debates across the crypto community. The discussions raise significant questions about industry preparedness against this emerging technology.

The Debate Intensifies

Buterin's warning has ignited strong reactions from both crypto enthusiasts and skeptics. Some believe that quantum computing poses greater risks to banking systems than to crypto itself. As one comment notes, "Quantum computing would much sooner pose a risk to banks than crypto." This suggests that the financial sector may need to prioritize upgrades over the crypto market.

Central Themes from Community Commentary

The discussion reveals three critical themes among commenters:

  1. Banking vs. Crypto Risks: Many emphasize that banks face imminent threats from quantum computing, citing their reliance on encryption methods such as TLS 1.3 and AES, which could be vulnerable.

  2. Blockchain Adaptability: Questions arise about whether existing blockchain infrastructures can evolve quickly enough to counter quantum threats. One user remarked, "The real question is; will most current chains be able to adapt before extinction?"

  3. Quantum-Resistant Cryptocurrencies: Interest grows around cryptocurrencies that could potentially resist quantum attacks. A user pointed out, "Quantum-resistant cryptocurrencies could become a focus for developers and investors alike."

Community Sentiment

While many express anxiety regarding quantum advancements, there's a blend of cautious optimism echoing throughout the forum. For instance:

"Crypto is gonna be the least of the financial system’s problems if quantum starts cracking cryptographic algorithms."

Interestingly, some users view this situation as an opportunity, with one stating, "Opportunity to rack up more sats in my opinion."

Key Takeaways

  • ⚠️ Immediate Banking Vulnerabilities: Centralized institutions might face tougher challenges than cryptocurrencies in the near term.

  • πŸ”„ Need for Blockchain Evolution: Current blockchains must adapt promptly to avoid becoming outdated.

  • 🌟 Focus on Quantum-Resistant Development: There’s potential for a new wave of cryptocurrencies aimed at combating quantum threats.

As discussions continue, both the crypto and banking communities must remain vigilant. With the clock ticking towards 2028, the question remainsβ€”will these sectors successfully adapt to the wave of quantum technology, or will they be caught off guard?