Bitcoin traded below $77,000 in the October 30 market selloff, as investors responded to Binance’s disclosure of a multibillion-dollar security incident. The intraday price movement illustrates how concentrated exchange risk can spill into crypto markets, particularly where traders rely on leverage and fast-moving derivatives.
A sharp decline after the security disclosure
A timestamped Binance market-data update recorded Bitcoin at about 76,945 USDT at 00:27 UTC on October 30, below the $77,000 threshold. That is a historical observation, not a live quote, and prices can vary by venue and time. The timing does not establish that the Binance security incident caused the entire market decline.
As detailed in BlockBriefing’s Binance incident report, the exchange’s October 30 announcement estimated approximately $6.3 billion in incident impact and about $3 billion of frozen affected assets. The exchange has promised to cover losses, but the final technical cause and recovery remain unresolved.
Why liquidations can amplify selling
When a leveraged long position no longer satisfies an exchange’s margin rules, the venue can close it automatically. Large simultaneous liquidations can create additional market orders, widen spreads and deepen price movement at moments of thin liquidity. BlockBriefing’s crypto slippage guide explains how liquidity and rapid execution affect trade prices.
CoinGlass publishes continuously changing exchange-level long and short liquidation data. Its public dashboard does not expose a stable historical dollar figure in the text snapshot used for this report, so this article does not treat any particular 24-hour liquidation total as independently established.
Risk extends beyond spot Bitcoin
The exchange incident has also affected investor confidence in wallet operations, lending protocols and exchange-linked assets. Aave, for example, confirmed widespread precautionary reserve freezes after an attacker-linked wallet opened a borrowing position.
That connection does not mean that Bitcoin’s entire intraday price move was caused by a single event. Macroeconomic conditions, existing positioning, other news and ordinary market volatility may also have contributed.
What to monitor next
Readers can follow timestamped spot prices, margin statistics and exchange status notices rather than interpreting one liquidation snapshot as a settled market total. For market-moving claims, the exact observation window and platform source are essential.
Further developments to watch include Binance’s recovery figures, its detailed investigation, changes in deposit and withdrawal availability, and whether forced-selling activity subsides. Neither a bounce nor a new low establishes where the market will trade next.
Primary source and verification
Read the original announcement or data record for the underlying evidence. Figures and circumstances reflect the publication dates specified in this report and may change with subsequent disclosures.
BlockBriefing reports on digital assets for information, not as investment, legal or trading advice. Images created for this report are editorial illustrations, not documentation of the event.
