[A User's 80 BTC Stolen After Purchasing Ledger from CryptoBillis] According to monitoring by Lookonchain, a user purchased 80 BTC (approximately $5.2 million) at an average price of around $65,000 per BTC four months ago, with unrealized gains reaching $1.38 million at one point. About a week ago, the user purchased a Ledger device from the distributor CryptoBillis and transferred all 80 BTC into it, which have now been completely stolen. On-chain data shows that the BTC was deposited on September 29 and transferred on October 9 to a previously flagged theft address by analysts.