quantumcomputing

Ethereum co-founder Vitalik Buterin has sounded a serious alarm: quantum computers could jeopardize the cryptography that underpins not just Ethereum, but many major blockchains — sooner than many expect.
What’s the Risk?;
Buterin estimates there’s about a 20% chance that quantum computers powerful enough to break modern cryptography will arrive before 2030.
He’s particularly concerned about elliptic-curve cryptography (ECC), which is widely used in blockchain wallets and transaction signing.
If quantum machines can run Shor’s algorithm at scale, they could derive private keys from public keys — meaning hackers could potentially extract funds from existing addresses.
Why Vitalik Thinks We Need to Act Now:
Buterin argues the crypto industry has only a few years (3–4) to migrate to quantum-resistant algorithms — otherwise, a “quantum emergency” could catch networks off guard.
At Devconnect (Buenos Aires), he reportedly suggested implementing a recovery hard fork, adding quantum-resistant crypto primitives (like STARK proofs) to secure the network before the threat becomes real.
He believes Ethereum’s roadmap — specifically a phase called “The Splurge” — must accelerate efforts to integrate post-quantum cryptography.
What Could Go Wrong If We Don’t Prepare:
Past Transactions at Risk: Funds controlled by addresses whose public keys are already exposed could be compromised once quantum computers mature.
Mass Migration Challenge: Upgrading to quantum-safe signatures means not just protocol change — wallets, smart contracts, and even user behavior may need to evolve.
Protocol Coordination: Because blockchains are decentralized, migrating to post-quantum cryptography will require wide community consensus — and that takes time.
Limited Adoption Today: Despite known solutions (like lattice-based or hash-based signature schemes), adoption remains slow due to complexity, performance tradeoffs, and ecosystem inertia.
What Is Being Done — And What Can You Do:
Developers are already researching and prototyping quantum-resistant cryptographic algorithms, including STARKs and other post-quantum signature schemes.
Buterin’s proposed hard fork would disable certain legacy transaction types, enable smart contract wallets more resistant to key extraction, and strengthen security against quantum attacks.
For regular users and investors:
1. Stay informed — follow Ethereum’s roadmap and cryptography upgrades
2. Use wallets and platforms that support or plan to support post-quantum features
3. Consider migrating to quantum-safe addresses if / when they are widely available
Final Thoughts:
Vitalik isn’t calling for panic — but he is calling for urgency. The quantum threat to crypto is no longer purely theoretical: with a non-negligible probability that breakthrough machines arrive within a few years, the community must prioritize quantum readiness now. Failure to do so could expose user funds, smart contracts, and entire networks to a new generation of cyberattacks.

If the crypto world wants to remain secure in the face of quantum risk, it needs to act — not just dream.
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$ETH
#ETH #quantumcomputing #CryptoSecurity #Ethereum #PostQuantum

A new Bitcoin proposal warns: quantum computers could crack BTC's cryptography by 2030. Legacy signatures may soon be phased out. The future of Bitcoin security is at stake.
Context in a Nutshell
$BTC is staring down a future many once dismissed as sci-fi: the advent of quantum computers powerful enough to crack its security. A bold proposal now aims to phase out legacy cryptography, but the clock is ticking — and the stakes couldn't be higher.
What You Should Know
A new Bitcoin Improvement Proposal (BIP) called "Post Quantum Migration and Legacy Signature Sunset" suggests phasing out legacy Bitcoin signature schemes like ECDSA/Schnorr in favor of quantum-resistant cryptography.The motivation: some forecasts estimate that quantum machines capable of breaking Bitcoin's current cryptographic protections could arrive as early as 2027–2030.Approximately 25–30% of Bitcoin's unspent outputs already reveal their public keys on-chain, making them especially vulnerable to quantum attacks.The proposed migration involves a phased approach:Stop sending to legacy, weak-address types.After a transition period, "freeze" those old addresses by preventing spending from them.A longer-term recovery path may involve proving ownership (via backup phrases) to reclaim frozen BTC, but that remains theoretical.Experts warn of the cost of delay: as more Bitcoin sits in quantum-vulnerable wallets, coordinating a migration becomes harder.There is disagreement: some cryptographers (like Adam Back) argue quantum threat is decades away (20–40 years), giving Bitcoin time to adopt post-quantum standards gradually.Meanwhile, researchers estimate that a full post-quantum upgrade could require significant downtime or network coordination, making early planning essential.
Why Does This Matter?
This is more than a theoretical risk. If quantum computers breach current cryptographic defenses, funds could be stolen, trust shattered, and Bitcoin's foundation destabilized. A coordinated migration could safeguard its future, but only if the community acts decisively. For builders, hodlers, and institutions, this is a moment to decide: wait and hope, or prepare and upgrade.
Bitcoin's security may be its strongest asset — but only if it continues to evolve. The quantum threat isn't tomorrow's problem anymore; it's today's call to action.
#bitcoin #quantumcomputing #CryptoSecurity $BTC $SOL

Satoshi Nakamoto's treasure of 1.1 million Bitcoins, worth tens of billions of dollars, is often seen as a digital "ghost ship," silent on the blockchain. But for cryptographers, it is not just a legend, but also a huge security risk.
The threat does not come from a typical hacker, but from an entirely new computational force: quantum computers.
📜 Part 1 - Context: The "Primitive" Vulnerability of the Satoshi Wallet

🧠 Nobel Prize winner in Physics John Martinis has teamed up with Hewlett Packard Enterprise (HPE) and leading microchip manufacturers to solve the main problem of the quantum computing era — to make them scalable and industrially reproducible.
The new alliance called the Quantum Scaling Alliance aims to transition quantum chips from laboratory 'handcrafted' methods to mass production, similar to the processes used in creating silicon processors for smartphones, laptops, or AI servers.