A major security week in crypto: Binance disclosed what it called the largest theft in the industry’s history, investors reacted quickly, and other platforms faced breaches while traditional finance moved to partner with a digital exchange. Regulators and market participants now face competing priorities, containing fallout from the attacks and advancing new products.
Binance reports $6.3 billion stolen
On October 29, 2026, Binance said an attack resulted in the theft of assets it values at approximately $6.3 billion. The exchange reported that around $3 billion of the stolen funds have been frozen, including more than $1.567 billion in USDT (Tether). Following the announcement, Bitcoin fell 4.8% to below $77,000 and Binance’s native token BNB dropped about 8%.
Binance’s initial investigation suggested the incident may have originated from a compromised laptop belonging to a DevOps engineer, and the company said no private keys were leaked. External analysis from Blockaid pointed to a possible exploitation of signing infrastructure via EIP-7702 on Binance’s so-called "hot wallet 14." Security firms TRM Labs, Blockaid, and researcher ZachXBT estimated that North Korean hackers were behind the attack.
Co-CEO Yi He said Binance would cover all losses using the exchange’s SAFU fund, reported to include about $1 billion in Bitcoin, and company funds. The theft included roughly 204,500 Ethereum, leaving ETH coverage at approximately 94% ahead of a reserve snapshot scheduled for November 1.
Polymarket breach forces emergency mode
Also on October 29, prediction-market platform Polymarket switched to an "order-cancellation-only" mode after more than $2.6 million was lost within minutes. On-chain investigator Arkham reported that a wallet attributed to the alleged attacker held about $2.65 million in POL tokens following exchanges of USDC.e.
Polymarket said it identified and fixed the root cause, which it attributed to a breach involving a third-party provider, and that it had referred the matter to law enforcement. The platform did not provide further financial remediation details in the initial statement.
ICE agrees to offer Hyperliquid perpetuals in the U.S.
Intercontinental Exchange (ICE), the parent company of the New York Stock Exchange, announced an agreement with Trade[XYZ] to offer regulated perpetual futures based on Hyperliquid in the United States. Under the deal ICE will be the exclusive operator and will acquire a strategic stake in the company, subject to regulatory approvals and with no launch date set.
The market reacted positively to the announcement: Hyperliquid’s token (HYPE) rose about 13% on the day to roughly $91, with a high near $92.10, still about 7% below its September record of nearly $98. Investor Stan Druckenmiller publicly endorsed the agreement.
ECB president Christine Lagarde to step down
European Central Bank President Christine Lagarde announced on October 29 that she will step down on February 7, 2027. Lagarde informed colleagues first; she became ECB president in November 2019 and will have served about seven years and three months by the time she leaves.
What this day means for crypto
The two security incidents, the Binance theft and the Polymarket breach, once again put platform security and third-party risk in the spotlight. At the same time, a major traditional exchange group advancing a regulated perpetuals product tied to a digital exchange signals continued convergence between legacy finance and crypto markets. Leadership changes at the ECB provide a separate macro backdrop as the industry navigates both operational risks and regulatory scrutiny.
Reporting noted potential attribution and technical vectors but investigations remain ongoing. Companies involved said containment measures are in place and further updates, including Binance’s reserve snapshot and regulatory approvals for ICE’s product, are expected in coming days and weeks.