Quantum Threat Lurking in the Shadows: Crypto Market at Risk
The crypto market is facing a silent threat from quantum computers that could compromise the security of major blockchains, including Bitcoin and Ethereum. According to Christopher Smith, CEO and co-founder of Quantus Network, a succession of unexplained wallet thefts may be the first sign of a quantum attack.
A sufficiently powerful quantum computer can derive a private key from a public key already available on-chain, allowing an attacker to divert funds without leaving any apparent evidence of a breach.
The threat is not limited to individual projects, but is a market-wide phenomenon that affects 99.96% of the crypto market, or about $2.3 trillion in digital assets, according to Quantus' State of Quantum Report published in May 2026.
Tether's minting key is another potential target for attackers, who may be able to generate illicit USDt and cause a stablecoin and liquidity crisis. The total stablecoin market is around $300.7 billion, with Tether's USDt accounting for about 60.9% of the market.