Crypto losses topped $1 billion in the first half of 2026 as the industry recorded its highest number of hacks in a six-month period, according to onchain security platform Blockaid. Ethereum and Solana recorded the largest losses from incidents affecting their networks, with roughly $332 million and $326 million in stolen funds, respectively, Blockaid said in its H1 2026 security report published Tuesday. The surge reflected increased targeting of high-value protocols and infrastructure vulnerabilities across both networks.
Blockaid tracked 212 security incidents during the period, with the largest single exploit coming from KelpDAO at $292 million, while the platform verified 3.4 times as many high-threshold exploits in H1 2026 as across all of 2025. Code exploits drove Ethereum incidents, while breaches of keys and signing infrastructure accounted for most Solana losses, according to the report.
Ethereum Recorded $332 Million in Losses from Code Exploits
Ethereum incurred the highest losses from incidents in H1 2026, with attackers primarily targeting vulnerabilities in applications built on the network. Blockaid said code exploits dominated Ethereum incidents by count, with major losses also linked to key compromises involving Humanity Protocol and StablR. CoWSwap, an Ethereum-based decentralized exchange, was the only major Ethereum incident in the report classified as a user mistake.
![Blockchain losses by network in the first half of 2026]()
Blockchain losses by network in the first half of 2026. Source: Blockaid.
Blockaid identified several common attack methods targeting Ethereum, including bugs in bridges and smart contracts, unauthorized access to privileged accounts and market manipulation techniques. The report said Ethereum remains a major target because it hosts many of the crypto industry's most valuable applications, including restaking platforms, stablecoins and decentralized exchanges.
Solana Losses Reached $326 Million Driven by Key Compromises
Solana incurred nearly as much in losses as Ethereum during the first half of 2026, a sharp increase from the roughly $127 million in stolen funds the network recorded during 2025. Blockaid CEO Ido Ben-Natan told Cointelegraph that 2025 had $2.58 billion lost across 63 incidents, concentrated in Q1 by Bybit's $1.5 billion, with Ethereum and Arbitrum the top chains by stolen-fund flow.
![Blockchain losses by network in 2025]()
Blockchain losses by network in 2025. Source: Blockaid.
The change did not stem from a rise in smart contract exploits. Instead, compromised keys accounted for more than 98% of Solana's losses, driven largely by incidents involving Drift Protocol and Step Finance, which Blockaid linked to North Korea-linked cyber groups. Unlike Ethereum, where attackers primarily exploited vulnerabilities in protocol code, Solana incidents targeted signer infrastructure and organizational security, while a handful of code exploits involving Raydium and Volo accounted for the remaining losses.
FAQ
What were the total crypto losses in the first half of 2026?
Crypto losses topped $1 billion in the first half of 2026, according to Blockaid's H1 2026 security report published Tuesday. The platform tracked 212 security incidents during the period, representing the highest number of hacks in a six-month period.
Which blockchain networks lost the most funds from hacks in H1 2026?
Ethereum and Solana recorded the largest losses from incidents affecting their networks in H1 2026, with roughly $332 million and $326 million in stolen funds, respectively, according to Blockaid. Code exploits drove Ethereum incidents, while breaches of keys and signing infrastructure accounted for most Solana losses.
What was the largest single exploit in the first half of 2026?
The largest single exploit in H1 2026 came from KelpDAO at $292 million, according to Blockaid's security report. The platform verified 3.4 times as many high-threshold exploits in H1 2026 as across all of 2025.
