Q2 2026 emerges as most-hacked quarter on record with 83 incidents

Cybersecurity incidents in the cryptocurrency sector reached a record high in the second quarter of 2026, with hackers stealing an estimated $755 million across 83 distinct security breaches. This figure represents the most incidents and the highest financial loss recorded in a single quarter for the crypto industry. Cross-chain bridges were identified as the most financially damaging attack vector, indicating a persistent vulnerability in the infrastructure that enables asset transfers between different blockchain networks. The total value stolen in Q2 2026 surpassed previous quarterly records, highlighting an escalating threat landscape for digital asset holders and platforms. Analysis of the incidents reveals a trend towards more sophisticated attacks targeting the interoperability solutions within the decentralized finance (DeFi) ecosystem. The increased frequency and severity of these breaches underscore the ongoing challenges in securing blockchain technologies and protecting user funds from malicious actors. This trend suggests a need for enhanced security protocols and auditing mechanisms for smart contracts and bridge protocols to mitigate future losses.