Big week for exchange risk.

On Oct 29 about $6.3B was taken from Binance hot wallets, the largest crypto theft on record (Chainalysis, Elliptic). The FBI ties it to North Korea's TraderTraitor group. Binance says it will cover user losses and reopened withdrawals on Oct 31. Bitcoin sat near $77.5K on Nov 1, down from about $80.5K a week earlier. A calm question for the room: how much of your crypto stays on an exchange, and how much do you actually need there?