Phishing Hack

Reported loss $91.0M
Phishing

What happened

On August 19, 2025, an unnamed Bitcoin holder lost 783 BTC, reported as about $91 million at the time, after threat actors impersonated customer support for a cryptocurrency exchange and a hardware-wallet manufacturer. The reported theft was a social-engineering incident, not a disclosed protocol exploit.

How it happened

  1. Threat actors impersonated customer-support representatives for an exchange and a hardware-wallet manufacturer.
  2. The victim fell for the social-engineering scheme and 783 BTC was transferred.
  3. The reported stolen funds then began to peel off across wallets, with deposits made to Wasabi Wallet.

Protocol details

Classification Other
Protocol Type Exploit/Phishing

Evidence

Understand the attack patterns

Compare incidents →
Phishing Attacks

Same attack technique

Browse all hacks →
Address Poisoning Attack $50.0M lost Venus $13.0M lost Phishing $55.0M lost AI Protocol $4.3M lost

Build your security review skills

Work through hands-on labs covering real exploit mechanics, review techniques, and defensive patterns.

Start Free Trial Explore attack classes