- CoinShares says quantum computing poses a long term risk to Bitcoin but current technology cannot threaten the network.
- Only a small share of Bitcoin sits in legacy addresses and most holdings remain too spread out for attacks today.
- Bitcoin can upgrade its cryptography over time and users can already move funds to safer address formats now easily.
Bitcoin faces a distant quantum computing risk rather than an immediate security crisis, according to a recent research note from CoinShares. The firm said public debate often exaggerates the current danger to Bitcoin’s cryptography.
Instead, the report described the issue as a long-term technical challenge. Moreover, CoinShares stressed that existing technology cannot break Bitcoin security today. As a result, the firm urged markets to focus on realistic timelines.
Quantum Risk Timeline Remains Distant
CoinShares said credible quantum threats remain at least a decade away. Bitcoin relies on cryptographic systems to protect private keys and confirm transactions. In theory, advanced quantum machines could derive private keys from public information. However, required computing power remains far beyond current hardware. Furthermore, quantum systems face major engineering limits. Therefore, the report found no near-term threat to the network.
Limited Exposure Across Bitcoin Supply
The report narrowed potential exposure to older Bitcoin address types. Roughly 8% of the total supply sits in legacy Pay-to-Public-Key addresses. These addresses reveal public keys directly on the blockchain. Even so, CoinShares found that most of this bitcoin remains widely distributed.
Only a small portion sits in addresses large enough to disrupt markets. Meanwhile, thousands of smaller outputs hold the remaining coins. Consequently, exploiting them would require unrealistic quantum capacity.
Network Defenses and Market Response
Bitcoin’s core hashing function remains secure under realistic assumptions. Quantum computers could speed up brute-force attempts but not enough to break mining security. In addition, Bitcoin has upgraded its cryptography before. The network can adopt quantum-resistant signatures through future updates. Users with older addresses can already reduce risk by moving funds. Therefore, practical defenses already exist.
CoinShares also challenged higher vulnerability estimates cited by some market participants. The report said those estimates grouped different risk categories together. This approach overstated actual exposure. CoinShares opposed drastic actions like burning vulnerable coins. Such steps could weaken property rights and decentralization. Instead, the firm supported gradual preparation and proven solutions.
Market conditions remain volatile as Bitcoin trades below recent highs. However, CoinShares said price weakness does not reflect quantum urgency. Investment flows have declined alongside broader risk aversion. The price of Bitcoin has intensified as BTC currently trades around $65,000–$69,000. Even so, development around post-quantum tools continues. CoinShares concluded that Bitcoin faces a manageable engineering task with ample preparation time
