More than 140 hacks and over $1 billion stolen so far this year, with Drift and Kelp accounting for over 80% of second-quarter losses.
DeFi (decentralized finance) suffered its worst quarter on record by hack count in Q2 2026, with 99 exploits recorded. The year to date has already seen more than 140 hacks and over $1 billion stolen, underscoring persistent security risks in crypto applications. Drift and Kelp were the main drivers of second-quarter losses, accounting for more than 80% of the total, according to the report.