Hello
I am Schiff, senior blockchain developer with 4 years exprience.
Today, my purpose is that blockchain can be cracked in 2027.

Do you trust cryptocurrency on the blockchain like ethereum, solana?
I am wondering if there are anyone among you with thinking like this...
"My wallet is absolutely safe. Nobody can crack my wallet."

I am waring you.
"You are wrong. Stay safe about your wallet."

The concern about quantum computers being able to crack current encryption methods, including those used by cryptocurrencies like Bitcoin (BTC), Ethereum (ETH), and Solana (SOL), is a topic of significant discussion. Here’s a summary based on the search results and current understanding:
Quantum Threat to Cryptography
Quantum Computers and Cryptography:
Quantum computers, once fully developed, have the potential to break current cryptographic systems that rely on asymmetric encryption methods. This is primarily due to algorithms like Shor's algorithm, which can efficiently factorize large numbers, a foundation of RSA encryption.
Timeline for Quantum Threat:
Experts predict that quantum computers capable of breaking current encryption might become operational between 2027 and 2030. This has led to increased efforts in developing quantum-resistant cryptographic methods.
Current Cryptographic Vulnerabilities:
Cryptographic schemes like RSA, ECDSA, and DSA, which are widely used for securing data, are vulnerable to quantum attacks. These methods rely on mathematical problems that quantum computers can solve efficiently.
Quantum-Resistant Solutions
Post-Quantum Cryptography (PQC):
PQC involves developing new cryptographic algorithms that are secure against both quantum and classical computers. These algorithms are based on mathematical problems that are believed to be resistant to quantum attacks.
Quantum Key Distribution (QKD):
QKD uses the principles of quantum physics to securely distribute keys. It provides a way to ensure secure communication that is theoretically immune to quantum attacks.
Transition Efforts:
Organizations and governments are actively working on transitioning to quantum-resistant cryptographic systems. The U.S. government, for instance, has issued guidance for migrating to post-quantum cryptography.
Implications for Cryptocurrencies

Cryptocurrency Vulnerability:
Cryptocurrencies like Bitcoin and Ethereum use cryptographic techniques that could be vulnerable to quantum attacks. However, the actual impact depends on the speed at which quantum computers are developed and the implementation of quantum-resistant technologies.
Preparation and Transition:
The cryptocurrency community is aware of these risks and is exploring ways to integrate quantum-resistant cryptographic methods. This includes potentially updating blockchain protocols to support PQC.

Conclusion
While the threat of quantum computers to current cryptographic systems is real, the timeline for when this threat will materialize is still uncertain. Efforts are underway to develop and standardize quantum-resistant cryptographic methods, which will be crucial for securing data, including cryptocurrencies, against future quantum attacks. It is essential for organizations and industries to start preparing for this transition to ensure long-term data security.