Crypto news

The quantum threat, so long discussed in the industry, may materialize not as a loud hack with front-page headlines, but as a quiet theft that no one will link to the new era of computing. Christopher Smith, co-founder and head of Quantus Network, has put forward a hypothesis that the first strike of quantum machines against cryptocurrencies will be virtually indistinguishable from a banal key leak or an internal security error.

The essence of the scenario is simple and frightening. A sufficiently powerful quantum computer could theoretically recover a private key using only public data that has been openly sitting on the blockchain for decades. This means an attacker does not need to hack a wallet, infiltrate a victim's device, or attack exchange servers. They simply "guess" the secret, mathematically deriving it from public information. To an observer, this will look exactly as if the user had handed over the keys to scammers themselves.

It is precisely this indistinguishability that is the main problem. We are used to waiting for "Q-Day"—the moment when quantum computers break standard public-key cryptography. But if an attack occurs on a well-protected organization where classical intrusion methods are ruled out, the only alarming signal will be the absence of traces of a breach. In fact, we may learn about the onset of the quantum era only in hindsight, once the damage has already been done.

Who is in the crosshairs: not Satoshi's bitcoin, but infrastructure

Interestingly, the primary targets, in my deep conviction, will not be Satoshi Nakamoto's "dormant" coins (about $65 billion at the time of analysis), but more vulnerable and strategically important points. Smith and Blockchain Capital security researcher Sean Cheatham agree that attackers will more likely be drawn to military systems, state secrets, or administrative keys of the crypto industry. A striking example is Tether's USDT issuance key, control over which would allow manipulation of a significant portion of the stablecoin market. Exchange hot wallets also look like a more likely target: stealing a large sum from a trading platform would attract less attention than moving Satoshi's legendary coins, whose movements the whole world watches.

Timeframes remain a subject of fierce debate. Google's recent breakthrough using AI, which lowered the estimate of computational resources needed to attack elliptic curves, prompted the company to accelerate its post-quantum migration to 2029. Smith himself estimates a 50% probability of a quantum scenario by 2028. NGRAVE head Roy Blackstone links the growing risks to the synergy of AI and quantum technology development, while Cheatham calls the early 2030s a nearly inevitable deadline. At the same time, Solana Foundation's Chief Information Security Officer Michael Coates reasonably refrains from forecasts, emphasizing that an exact date is impossible in principle.

My analysis: The real threat lies not in the fact of the hack itself, but in our inability to diagnose it in a timely manner. Bitcoin and other cryptocurrencies are the "canary in the coal mine" for the entire digital economy. If we do not develop mechanisms to detect such attacks right now, we risk waking up in a world where trust in blockchain is undermined not by a one-time collapse, but by a slow and imperceptible bleeding out.