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What Is Quantum Computing?

Last Updated December 7, 2023 1:26 PM
Andrew Kamsky
Last Updated December 7, 2023 1:26 PM

Key Takeaways

  • Quantum computing threatens crypto security by performing calculations exponentially faster. Deeming quantum-resistant encryption development, in the near future, necessary.
  • The quantum computer threat to crypto is roughly 10-15 years away, requiring proactive security measures and quantum-resistant solutions.
  • Quantum computing does offer benefits to crypto via enhanced consensus, faster transactions, advanced data analysis, and improved security.
  • Some quantum computing disadvantages include security threats, network centralization, shorter confirmations, market volatility, and diverted resources.

Quantum computers leverage the unique principles of quantum mechanics to perform calculations and tackle complex problems at extraordinary speeds. Unlike their classical counterparts, which represent information in the binary language of 0s and 1s, quantum computers utilize qubits. 

Qubits possess the remarkable ability to exist in multiple states simultaneously, opening the door to a world of computing possibilities previously unimaginable.

How Does Quantum Computing Work?

These powerful computers leverage principles of quantum mechanics, such as superposition and entanglement, to process and store information using quantum bits (qubits).These quantum machines excel in tasks like code-breaking, logistics optimization, and financial portfolio management. 

This remarkable advancement could also offer profound influence across various domains, including pharmaceutical research, weather forecasting and cryptographic needs. Quantum computers can be used to strengthen crypto by creating new quantum-resistant encryption methods and enhancing cybersecurity.

IBM Debuted Its First-Ever 1,000-Qubit Quantum Chip

IBM has diligently pursued a quantum-computing roadmap, consistently doubling the qubit count annually. The latest chip, Condor, unveiled on December 4th, features 1,121 superconducting qubits arranged in a honeycomb structure.

It builds upon previous record-breaking machines named after birds, such as the 127-qubit chip in 2021 and a 433-qubit one the year before. This advancement, a sharp rise from prior milestones accelerates quantum computing’s potential.

The expanded qubit count enhances processing power, promising breakthroughs in complex calculations and simulations. IBM’s consistent progress along its roadmap showcases rapid qubit multiplication annually, propelling quantum computing’s evolution.

The Condor’s honeycomb pattern signifies a leap forward in scalability and computing prowess, positioning IBM at the forefront of quantum innovation and paving the way for transformative applications across various industries.

Impact Of Quantum Computing On Cryptographic Security

Blockchain, a transformative technology, has been trusted for its decentralized structure, transparency, and cryptographic security. However, understanding the potential threat quantum computing poses to blockchain and digital assets is pivotal, especially as the world inches closer to mainstream cryptocurrency adoption. 

Cryptography serves as the ultimate bedrock of digital security, playing a pivotal role in safeguarding assets like Bitcoin (BTC) and other cryptocurrencies. However, quantum machines have the potential to dismantle existing encryption algorithms. In the event that a sufficiently powerful quantum computer emerges, the consequences may lead to  unauthorized access to sensitive data. 

To mitigate this looming threat, one strategic avenue involves the development of quantum-resistant cryptographic algorithms. These cutting-edge algorithms are designed to withstand attacks from both classical and quantum computers, ensuring the enduring strength and resilience of cryptographic security, even in the face of quantum advancements.

Does Quantum Computing Threaten Bitcoin Security?

As of the present moment, Bitcoin and other cryptocurrencies remain safe versus quantum computer hacking. This is because the Bitcoin network is kept secure by computers known as miners that use a cryptographic algorithm called SHA-256, which was created by the US National Security Agency. 

Cracking this code is virtually impossible for regular computers, however, quantum computers, harnessing the potential of quantum physics to accelerate specific computations, theoretically possess the capability to unlock it. Quantum computers would need to, however, become about a million times larger than they are today in order to break the algorithm that secures Bitcoin, which would put the cryptocurrency at risk from hackers. 

As quantum technology is currently in its early stages, and the emergence of a large-scale, operationally effective quantum computer with the capacity to breach Bitcoin’s encryption is not yet a reality. Nonetheless, the quantum computing threat to Bitcoin does exist and it underlines the importance of proactive preparations to safeguard the cryptocurrency over the next decades. 

Will Quantum Computers Break Cryptocurrency?

While the emergence of quantum computing could potentially disrupt existing encryption methods, it doesn’t necessarily signal the demise of cryptocurrencies. The cryptocurrency industry has demonstrated remarkable resilience in the face of diverse challenges, suggesting its capacity to adapt to the new landscape of quantum computing.

In fact, the advent of quantum computing may well usher in opportunities for the cryptocurrency sector to innovate and evolve. Society might witness the rise of quantum-resistant cryptocurrencies, employing encryption techniques that are cryptographically and mathematically sound versus an attack from quantum computers.

Quantum Computing’s Potential Impact on Cryptocurrency Mining

Many prominent cryptocurrencies, Bitcoin among them, rely on proof-of-work (PoW) mining as a cornerstone of their blockchain security. In this PoW approach, network participants known as miners engage in a competitive race to solve complex mathematical puzzles, thus validating new transactions on the blockchain. The victorious miner is rewarded with cryptocurrency, termed block rewards, for their computational efforts.

In the foreseeable future, quantum computing holds the potential to significantly accelerate the resolution of mining puzzles compared to contemporary mining equipment. This could grant quantum-capable individuals the ability to accumulate mining rewards at an unprecedented rate and potentially gain control over a substantial portion of the network’s computational power, a scenario commonly referred to as a 51% attack.

While some researchers suggest that quantum computers may not realistically execute a 51% attack on Bitcoin until the end of this decade.

How Long Will It Take For Quantum Computers To Break Encryption? 

The crypto community acknowledges the looming quantum threat that is roughly 8-10 years away from materializing according to John Woods , CTO of Algorand. 

Several projects are now focusing on quantum-resistant protocols and cryptographic solutions, such as Algorand and Chainlink. Potential solutions include lattice-based cryptography, which introduces mathematical noise to confuse quantum computers, and algorithms designed to challenge both classical and quantum systems.

While quantum computing might not pose an immediate danger to cryptocurrencies, it necessitates proactive measures. Blockchain systems will need to adapt, innovate, and possibly even overhaul their foundational cryptographic protocols to ensure longevity and security in the quantum age that will arise in the future.

How Can Quantum Computing Benefit The Crypto Industry

Quantum computing doesn’t only merely present a potential threat to the cryptocurrency industry, these machines also carry the promise of numerous advantages. Quantum computers hold the potential to be harnessed in diverse applications, including the optimization of blockchain consensus algorithms, acceleration of transaction speeds, and the facilitation of advanced data analysis for predictive market insights.

Furthermore, the evolution of quantum-resistant cryptographic techniques stands to bolster the overall security of cryptocurrencies and blockchain networks. This intriguing fusion of quantum computing and the crypto realm signifies a realm of possibilities for innovation and progress. 

Some ways quantum machines can aid the crypto industry are:

Accelerated Blockchain Consensus Optimization

Quantum computers have the potential to optimize blockchain consensus algorithms, enhancing the efficiency and security of blockchain networks.

Increased Transaction Speed

Quantum computing can expedite transaction processing, reducing confirmation times and enabling faster cryptocurrency transactions.

Advanced Data Analysis

Quantum computers can facilitate sophisticated data analysis for market predictions, improving trading strategies and decision-making in the crypto industry.

Quantum-Resistant Cryptography

The development of quantum-resistant cryptographic techniques can enhance the overall security of cryptocurrencies and blockchain networks, safeguarding them against potential quantum threats.

Enhanced Blockchain Performance

The synergy of quantum computing with the crypto sector offers opportunities for innovation and progress, potentially boosting the overall performance of cryptocurrencies and their underlying blockchain technology.


Advancements in quantum computing present both opportunities and challenges for the cryptocurrency industry. While quantum computing has the potential to disrupt existing encryption methods and pose security threats, it doesn’t signal the demise of cryptocurrencies. 

The crypto sector is capable of rising up against diverse challenges, suggesting its capacity to adapt to the new quantum landscape. With the emergence of quantum-resistant cryptographic techniques, the industry can bolster its security. 

It is, however, crucial to address the potential disadvantages, including security threats, network centralization, shortened transaction confirmation times, and the impact of advanced data analysis on market volatility. The crypto industry is poised to evolve and innovate in response to the quantum age, ensuring longevity and security. 


What is quantum computing, and how does it relate to cryptocurrencies?

Quantum computing leverages quantum mechanics to perform calculations exponentially faster than regular computers. This advance in technology may potentially threaten cryptocurrency security and prompt the development of quantum-resistant encryption methods. 

When will quantum computers pose a threat to cryptographic security in the crypto industry?

Quantum computing’s threat is estimated to be about 10-15 years away, prompting the development of quantum-resistant protocols and cryptographic solutions to ensure long-term security.

How can quantum computing benefit the cryptocurrency industry?

Quantum computing can enhance blockchain consensus, increase transaction speed, facilitate advanced data analysis, and improve security through quantum-resistant cryptography, offering innovation and progress opportunities.

What disadvantages does quantum computing bring to the crypto industry?

Quantum computing introduces security threats, potential network centralization, shorter transaction confirmation times, market volatility, and diverts resources from other crypto development areas, necessitating careful consideration and proactive measures.

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