Quantum threat without a trace: the first attack on the crypto industry may go unnoticed
The crypto industry could face its first quantum hack without even realizing it. As I believe, based on an analysis of recent developments, the key issue is that such an attack would be indistinguishable from a banal key theft—a classic scenario we have long learned to deal with.
Technically, a sufficiently powerful quantum computer can recover a private key from public data already exposed on the blockchain. This opens a direct path for an attacker to funds, bypassing the need to hack a wallet, device, or exchange's internal systems. It is this factor that makes pinpointing the so-called "Q-Day"—the moment when quantum machines begin breaking standard public-key cryptography—an extremely challenging task.
Who is in the crosshairs?
Contrary to popular belief, the first target will likely not be Satoshi Nakamoto's "dormant" bitcoins, valued at approximately $65 billion. Far more attractive targets appear to be military systems, state secrets, or administrative keys in the crypto industry. A striking example is Tether's USDT issuance key—compromising such an asset could have catastrophic consequences for the entire stablecoin market.
Exchange hot wallets also represent a likely target. Theft from them would attract less attention than moving Satoshi's coins, making this scenario more realistic for attackers seeking to operate covertly.
Timelines and forecasts
Estimates of when the quantum threat will materialize vary. Some experts put the probability of this scenario by 2028 at 50%, while others call the early 2030s almost inevitable. Still others refuse to give specific dates, emphasizing that an accurate forecast is impossible. Importantly, Google has already accelerated its post-quantum migration plan, setting a target date of 2029 after an AI-driven breakthrough that reduced the estimated computational resources needed to attack elliptic curve cryptography.
My analysis: The parallel development of AI and quantum technologies creates a synergy effect that could shorten expected timelines. The market needs to prepare for the post-quantum era now, rather than waiting for the first high-profile hack. Implementing quantum-resistant algorithms should become a priority for all significant projects; otherwise, we risk facing a crisis of trust that would undermine the very foundations of the industry.