Are quantum computers stealing Bitcoin? Josh Mandell’s claims and the backlash

Is quantum Bitcoin hacking here?

Bitcoin was designed on the basis that, once funds were secured with a secret key, they could only be accessed by the holder. But what happens if the assumption that funds are secured by a private key no longer applies?

Josh Mandell, a former Wall Street investor and trader who was reportedly a poster on X that has since been deleted, alleged quantum computers Are being used to siphon BitcoinBTC) from long-dormant wallets — especially those of owners presumed inactive or deceased.

He said that a “large player” Blockchain analysts are the only way to detect the theft.

The implications of such an act would be grave: undermine the very foundation of Bitcoin’s security and ownership model. What does onchain actually prove? Is it possible to demonstrate that this technology exists even today?

This article explores Mandell’s claims and expert responses, along with the current status of quantum computing.

Did You Know? Many BTC wallets and private keys are lost forever.

Josh Mandell’s claim

Mandell claims that inactive, old people are the cause of Mandell’s allegations Bitcoin wallets Quantum computing is being used to drain funds in a quiet manner. He claims that an actor who is large in scale accumulates BTC, not through exchanges but rather by accessing private keys to wallets of owners unlikely to respond or be aware.

The key points in his argument:

• Targeted wallets Accounts which have been dormant for some time. Often assumed abandoned, or linked to the deceased owner.
• Off-market accumulation: The coins are removed without causing price fluctuations or large sales orders.
• The detection risk: Mandell acknowledges that there is no proof of suspicious movements, but only blockchain forensics can reveal them.
• Quantum leap He suggests that quantum technology is at a stage where it could crack Bitcoin’s cryptographic defenses The classical computer cannot.

Mandell has not provided any hard proof. His position is that the scenario is technically possible — and may already be unfolding — but this remains unverified.

Did You Know? Scientists at Oxford have achieved an error rate of just 0.000015% (one error in 6.7 million operations) for certain quantum operations — a new world-record fidelity.

How feasible is quantum technology?

Mandell claims that quantum computers are advanced enough to be able to break the barrier. the public-key cryptography That secures Bitcoin wallets. To assess this, it is necessary to examine what an attack would involve and whether current technology can make such an assault possible.

Bitcoin depends on the Elliptic Curve Digital Signature Algorithm (ECDSA)The secp256k1 curvature is a good example.

The public key of a wallet is visible once coins have been spent. A hacker could steal any money left on the chain if they were able to derive a private key from a public key.

Shor’s algorithm, a quantum algorithm, could, in theory, perform this exponentially faster than classical methods — but only with quantum hardware far beyond today’s capabilities.

However, in reality, several obstacles remain.

• Error correction and logical qubits: Physical qubits can be unstable. In order to create fault-tolerant logical quabits, the error correction hardware multiplies requirements.
• The number of qubits required: Once error-correction overheads are included, it is estimated that hundreds of thousands or even millions of qubits of physical material would be needed to crack a secp256k1 secret.
• Gate reliability and error rates The operation must be near-perfect. As of now, current chips include Google’s 105-qubit WillowThe thresholds at which error correction can begin to be helpful are only just beginning to reach, and they still remain a long way from having full fault tolerance.
• Expert predictions: The majority of researchers believe that the ECDSA will be broken by a real quantum computer in at least one decade, and even longer with advances made to coherence speeds, scaling and errors suppression.

Mandell implies this stage has already been reached — that someone has hardware powerful and discreet enough to crack private keys from dormant wallets It is possible to detect without detection.

According to public information, the devices of today are not up to required standards.

Did You Know? The Mt. One Bitcoin wallet tied to the Mt.

Bitcoin and cryptocurrency communities push back on the Bitcoin community

Bitcoin users have responded quickly and with skepticism.

Harry Beckwith said that Hot Pixel Group founder Harry Beckwith. “There is literally no chance this is currently happening.” Matthew Pines from the Bitcoin Policy Institute called Theory “false” And criticized the lack of proof.

They argue in several ways:

• Quantum technology is still a long way off: Progress is slow but steady current machines lack the qubit countsThe processing power and error correction required to launch cryptographic attacks against Bitcoin. Quantum Risk is real but a future issue.
• There is no supporting evidence On-chain movement of dormant coin has been observed but does not indicate quantum-driven crime. The majority of the cases can be explained better by reactivating wallets or inheritance transfers, as well as security upgrades.
• Limitations of public key exposed: Only in certain places is it possible to launch an attack public keys are revealedEven then, the adversary must calculate their private keys live. Many inactive wallets have never disclosed their public key.
• Blockchain Transparency: Analysis firms are constantly tracking dormant pockets. There are no red flags for large scale stealth drains.

Mandell’s assertion that the technology is being weaponized to attack Bitcoin now is premature.

Onchain Data: What does it show (or not)?

Blockchain should be able to show clear signs if quantum-based thefts are occurring. As of yet, the blockchain does not show any signs.

• Reactivation of dormant wallets A number of old wallets, dating back to the Satoshi (2009-2011 era), are generating large sums. You can, for instance. 80,000 BTC Eight addresses inactive since 14 years were moved. The analysts think that this is a voluntary move to a modern format like SegWit.
• There are no anomalous signatures The published data does not show any evidence that quantum keys have been broken, such as extractions occurring simultaneously with public key disclosure. The observed activity is consistent with normal actions such as consolidations Or fee optimization.
• There have been no confirmed thefts. Apart from cases of reactivation, there have not been any confirmed losses directly linked to quantum computers. The coins are usually moved quietly and without any evidence that they were forced.
• Legacy vulnerabilities remain: BTC in its older forms such as pay to public key (P2PK) and P2PK hash (P2PKH)Theoretically, they are weaker and expose the public key. The risk is highlighted if quantum technology advances, although there has been no proof of its exploitation.

The data from onchain confirms that vulnerabilities do exist, but does not provide proof of their use with quantum methods.

Mandell’s claim at a glance

Mandell’s assertion that quantum computer are already stealing Bitcoins from dormant accounts remains unproven.

Experts estimate that it will take at least 10 years before quantum computers can realistically crack the ECDSA encryption protecting Bitcoin.

Some predictions suggest that risks may emerge as early as the 2020s. This is especially true for wallets which have exposed public keys. As of now, the blockchain data points towards benign explanations, such as reactivation migration and consolidation.

Watch out for the following: large, sudden transfers away from legacy formats; rapid movements immediately after public keys are exposed or demonstrable private key extraction. The quantum threat shouldn’t be considered a current reality, but rather a challenge for the future.