Q2 2026 has become the most-hacked quarter in crypto history, according to Cointelegraph. Hackers stole $755 million across 83 security incidents, averaging nearly one attack per day with daily losses exceeding $8.3 million.
Cross-chain bridges remained the costliest attack vector. These bridges are complex infrastructures with multiple vulnerability points, including smart contract flaws, signature verification issues, and oracle manipulation. Several major hacks in Q2 targeted cross-chain bridges, causing millions in losses. Despite increased audits, bridges continue to be prime targets.
Cointelegraph's data indicates Q2 2026 surpassed all previous quarters in both incident count and total losses, highlighting the ongoing security challenge, especially for cross-chain bridges.