Hackers stole over $168.6 million from 34 DeFi protocols in the first quarter of 2026, according to DefiLlama data. This marks a significant decline compared to the previous year. The largest incident involved a $40 million private key compromise at StepFinance in January. Additionally, a smart contract manipulation attack led to the theft of $26.4 million in ETH, while a private key leak at ResolvLabs resulted in a stablecoin loss on March 21.