ZachXBT: American Suspect Allegedly Impersonates Customer Service to Commit Crypto Fraud, Involving Over $5 Million

TechFlow News, August 10: On-chain investigator ZachXBT stated that American hacker Tiffany Milanovich is suspected of conducting telephone fraud by impersonating hardware wallet and centralized exchange customer support, cumulatively stealing at least $5 million worth of crypto assets. She was primarily responsible within the group for contacting victims and inducing them to hand over access permissions to accounts or funds.

Disclosed cases include: In June 2026, a victim lost approximately $1.2 million worth of Bitcoin and Ethereum due to forged BitcoinIRA emails; in October 2025, approximately $500,000 worth of Bitcoin was stolen from another victim's Coinbase account. ZachXBT stated that a complete chain of evidence including chat logs, recordings, and on-chain data has currently been formed.