Bitcoin Plunges 6% as AI Selloff, Binance Hack, and Quantum Threat Rattle Markets

Bitcoin fell to around $75,350 on November 6, extending a punishing week for digital assets. The selloff was driven by a broader retreat from risk assets sparked by concerns over artificial intelligence infrastructure spending that triggered a sharp Wall Street decline, with the Philadelphia Semiconductor Index posting its steepest single-day drop since March 2020. Ethereum slid roughly 7.8%, and the crypto Fear and Greed Index collapsed to 28, firmly in fear territory.

The carnage in leveraged markets compounded the pain. According to Bloomberg, Bitcoin edged back into the green on Friday morning after tumbling almost 6% from above $80,000 a day earlier, while spot Bitcoin ETFs recorded $430.2 million in net outflows on Thursday alone, signaling that institutional buyers were not stepping in to cushion the fall. Total crypto liquidations over 24 hours reached approximately $1.09 billion, with long positions accounting for nearly 89% of those forced closes.

Binance Hack Adds Regulatory Pressure to an Already Fragile Market

Sentiment was further weighed down by the fallout from a reported $6.3 billion security breach at Binance, described as the largest exchange hack on record. The incident has fueled risk aversion across the market and reignited debate over exchange security, custody standards, and the path forward for major U.S. crypto legislation. The CLARITY Act, already stalled in the Senate, faces a steeper climb after Democrats swept both chambers of Congress in this week's midterm elections, introducing fresh uncertainty over crypto-friendly policy.

On the technology front, Bitcoin Core developer Cory Fields offered a rare piece of constructive news by posting a novel quantum-defense proposal to the bitcoin-dev mailing list on November 4. First reported by CoinDesk, the concept would require any would-be quantum attacker to stake collateral equal to the value of coins they attempt to steal from a quantum-safe wallet, with the legitimate owner holding the ability to seize that collateral by revealing a pre-hidden proof of ownership.

Fields described the ideas as thought experiments that assume Bitcoin first gains quantum-safe wallets, and acknowledged the full consensus rules needed to enforce them remain unwritten. The proposal adds a third path to a debate that has so far run between taking no action and freezing vulnerable coins by network decree, and reflects growing urgency among developers to address quantum computing threats before they become a practical risk to the network.