Protocol logic exploits accounted for 28% of flash loan losses between February 2020 and January 2022, but rose to 55% of losses between February 2022 and July 2024 as attackers shifted away from price feed manipulation.

From the articleFlash Loan Attacks Cost DeFi $1.2 Billion Over Four Years, Study Finds - BlockonomiAlso in Flash Loan Attacks Drained $1.2B From DeFi Between 2020 and 2024: Study - Decrypt, Logic exploits took 55% of DeFi flash loan losses, overtaking price manipulation