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Crypto Phishing Losses Jump 72% in August to $12.17 Million, Hitting 15,000+ Wallets

Investigators cite EIP-7702–enabled batch signatures as a new vector that blends into everyday DeFi and NFT interactions.

Overview

  • Scam Sniffer counted about 15,230 victim wallets in August, a 67% rise from July’s tally.
  • Three whale-focused thefts totaled $5.62 million, accounting for roughly 46% of August’s phishing losses.
  • The latest scams exploit EIP-7702 by turning standard wallets into temporary contract-like accounts to secure bundled or unlimited approvals.
  • A Wintermute-linked Dune dashboard reported malicious behavior in over 80% of EIP-7702 delegate contracts, impacting more than 450,000 addresses since rollout.
  • Broader crypto theft remained high, with trackers estimating roughly $163 million stolen across hacks and exploits in August and Chainalysis citing $2.17 billion lost in the first half of 2025.