Blockaid found Ethereum remained the hardest-hit blockchain in H1 2026, while Solana replaced Arbitrum as the network with the second-highest losses, driven largely by key compromises.
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.
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.
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