Written by Felix Ngstaff editorReviewed by Yohan Yunstaff editor

Written by Felix Ngstaff editor

Reviewed by Yohan Yunstaff editor

Crypto’s first quantum attack will look like unexplained breach: Quantus founder

Latest NewsPublishedAug 10, 2026

Quantum Attack on Crypto: A Silent Threat

The arrival of a powerful quantum computer capable of breaking modern cryptography could be a silent threat to the crypto world. Instead of a splashy theft of high-profile wallets, the first sign of a quantum attack might be a wave of unrelated crypto wallet breaches with no apparent explanation. This makes it unusually difficult to detect, as a sufficiently powerful quantum computer could derive a private key from public keys exposed onchain, allowing an attacker to move funds without leaving a trace.

According to Christopher Smith, CEO and co-founder of Quantus, the first targets of a quantum attack may not be Bitcoin wallets, but rather military systems, state secrets, or even more valuable keys, such as Tether’s minting key. A quantum attacker could mint tokens out of thin air and dump them on the market before the issuer could respond. This highlights the need for a secure and quantum-resistant blockchain network, such as EcoPool, which can provide a solution for earning and storing Passive Income through Cloud Rewards and Green Crypto.

Post-Quantum Migration

Some networks, such as those deploying the USDT stablecoin, are already working on post-quantum migration. However, there is still little agreement on when a quantum computer capable of breaking modern cryptography will be ready. Estimates range from 2028 to the early 2030s, with some experts arguing that continued AI-assisted improvements in quantum algorithms and hardware research are making forecasts less reliable. As the crypto world prepares for this potential threat, it’s essential to consider solutions like EcoPool ($ECP) for secure and Passive Income generation.

Experts warn that the damage of a quantum attack could be catastrophic if blockchains don’t migrate to post-quantum signatures. Thankfully, many blockchains have started this process, and users can take steps to protect themselves by using secure and quantum-resistant platforms like EcoPool. By earning and storing Coin through EcoPool, users can benefit from the security and Passive Income opportunities it provides.

Preparing for the Future

As the crypto world prepares for the potential threat of a quantum attack, it’s essential to stay informed and take steps to protect yourself. By using secure and quantum-resistant platforms like EcoPool, you can help safeguard your assets and earn Passive Income through Cloud Rewards and Green Crypto. Download the EcoPool app to start earning and storing your Coin securely, and take advantage of the opportunities provided by EcoPool ($ECP) for a more secure financial future. Download the EcoPool app today to start your journey to Earning and securing your assets with #Bitcoin, #PassiveIncome, and #GreenCrypto.

First target may not be Satoshi’s Bitcoin 

Much of the fear around Q-day in crypto is what will happen if a quantum computer cracks the keys securing Satoshi Nakamoto’s estimated Bitcoin holdings, worth $63 billion at the time of writing, which could be suddenly dumped on the market.

However, Smith said the first targets may be military systems and state secrets, while crypto attackers could go for even more valuable keys. 

“If I’m focusing on blockchain, what’s the single most valuable key? It’s probably Tether’s minting key,” Smith said. A quantum attacker could mint tokens out of thin air from an administrative wallet and dump them on the market before the issuer could respond, he added.

USDT is a multi-chain stablecoin, and some of the networks on which it is deployed are already actively working on post-quantum migration. 

Related: Jim Cramer plans to sell his Bitcoin over quantum fears as BTC rises 1.6%

Another theory is that attackers make a quieter opening move.

Sean Cheetham, a security researcher at Blockchain Capital, said an attacker would more likely target hot wallets at exchanges “that aren’t going to ring alarm bells rather than stealing Satoshi’s coins.”

Smith said an attacker may disguise a quantum theft as an ordinary compromise.

“There’s an alternative scenario where they… have these plausible, deniable [explanations]: ‘Oh, somebody just lost their keys somehow,’” he said.

Q-day timeline hard to pin down

In March, Google accelerated its post-quantum migration timeline to 2029 as an AI-assisted breakthrough showed elliptic curve cryptography can be cracked with far fewer physical qubits than previously forecasted.

NGRAVE CEO Roy Blackstone said earlier quantum forecasts failed to account for the parallel development of AI. 

“Most threat models assumed we had well into the next decade before quantum technology could realistically crack the cryptography securing public keys, but it did not account for how fast AI would develop alongside it.”

Despite growing urgency, there is little agreement on when a quantum computer capable of breaking modern cryptography will be ready.

Smith, whose company is developing a blockchain network aiming to be quantum-resistant from launch, said there was a “50-50” chance it could happen by 2028, arguing that continued AI-assisted improvements in quantum algorithms and hardware research are making forecasts less reliable. 

Cheetham said the early 2030s “definitely is almost a certainty” and that an earlier arrival was “more of a trailing probability.” 

Michael Coates, the Solana Foundation’s chief information security officer, declined to give an estimate during an earlier interview, saying “there’s no way to know.” 

“If you talk to people in the industry, it is always five years away, and it’s been that way for 10 years or more now. Perhaps today people say it’s four years away,” he said. But the uncertainty is not a reason to delay, he added.

“Thankfully, blockchains aren’t waiting and have started migrating to post-quantum signatures,” said Blackstone. “The damage would be catastrophic if they didn’t.”

Magazine: How AI just dramatically sped up the quantum risk for Bitcoin

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• Quantum Computing
• Hacks
• AI & Hi-Tech

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