GM folks 👋

Our H1 2026 DeFi Security Report, Quill Ledger, is live.

The headline number: $935.3M lost across 87 incidents in six months, one significant hack every 2 days.

But the more interesting finding is where that money went. Private key compromise and bridge verification bypass together caused 82.7% of all losses. Not smart contract bugs, trust failures.

The two biggest hacks of the half, Drift Trade ($295M) and Kelp DAO ($293M), landed just 17 days apart in April. Neither required a novel exploit. Both required only privileged access.

Inside the report:

• Month-by-month loss breakdown across H1 2026
• H1 2025 vs H1 2026 year-over-year comparison
• Attack vector, sector, and chain breakdowns
• 5 in-depth case studies
• Our own H1 2026 audit track record: 50+ protocols, 375 vulnerabilities found, 0 exploits

Read the full report here: Quill Ledger H1 2026 DeFi Security Report​

Team QuillAudits

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