The DeFi sector is experiencing a shift in the dominant failure mode from code to custody. This change has been accelerated by the adoption of AI tooling, which has compressed the time between compromise and capital flight.
A recent incident at Humanity Protocol highlights this trend. In June 2026, attackers compromised a private key and drained over $30 million from 17 wallets, sending the H token down more than 80% intraday.
CertiK's threat report notes that bridge-related incidents have totaled over $328 million this year, with wallet compromise overtaking code vulnerabilities as the dominant exploit vector by value.