According to Cointelegraph, according to a report released by Web3 portfolio application De.Fi, in the second quarter of 2023, decentralized finance (DeFi) hacking and fraud-related losses exceeded US$204 million.
It is reported that the "Second Quarter De.Fi Rekt Report" is partly based on the data of De.Fi's "Rekt Database". In the second quarter, the initial DeFi hacker attack and fraud-related losses exceeded US$208.5 million, but US$4.5 million was recovered through prosecution, transactions with hackers and other methods.
According to the report, the number of DeFi hacker attacks in the second quarter increased by "nearly 7 times" year-on-year to 117, compared with only 17 in the same period of 2022. The total loss in the first half of 2023 exceeded US$665 million.
The top five hacker attacks in the second quarter were Atomic Wallet, Fintoch, MEV-Boost, Bitrue, and GDAC. The Atomic Wallet vulnerability on June 3rd caused a loss of $35 million, accounting for about 17% of the total. Fintoch users lost $30.6 million due to Rug Pull, and the MEV-Boost attack caused a loss of $26.1 million. The combined losses caused by these three attacks accounted for more than 45% of the total losses in the second quarter.
De.Fi reported that the most common reason for losses was "access control issues," where an attacker gains unauthorized control of a wallet. This resulted in $75.8 million in losses, or a quarter of the total amount lost. The second most common reason was vulnerabilities, which totaled $55.3 million in losses. Users also lost $47.3 million in Q2 to Rug Pulls or exit scams.
Losses from DeFi hacks and scams were actually smaller in the second quarter than in the first, with CertiK reporting in April that such losses exceeded $320 million from January to March.