Binance, the world's largest cryptocurrency exchange, disclosed a major security incident affecting approximately $6.3 billion worth of assets. Nearly $3 billion of the impacted assets have been frozen on-chain as part of the response. Stablecoin issuers Tether and Circle took action, freezing over 1.567 billion USDT and 800 million USDT respectively linked to the incident. The breach represents one of the largest security incidents in cryptocurrency exchange history. The full scope of the attack vector and attribution has not been disclosed in the available content. The freezing of assets by stablecoin issuers indicates coordinated industry response to limit further damage. This incident highlights ongoing vulnerabilities in centralized cryptocurrency exchange infrastructure.