Ethereum and Solana ranked first and second for crypto hack losses in H1 2026, Blockaid finds
Blockaid's first-half 2026 security data puts $ETH at the top of the hack-loss table across major blockchains, with $SOL entering the ranking in second place. Solana displaced Arbitrum for that slot, key compromises…
Blockaid's first-half 2026 security data puts $ETH at the top of the hack-loss table across major blockchains, with $SOL entering the ranking in second place. Solana displaced Arbitrum for that slot, key compromises cited as the primary factor behind its losses over the period.
Ethereum holds the hardest-hit position
Per Blockaid's H1 2026 findings, Ethereum remained the blockchain with the highest hack-related losses through the first six months of the year. The security firm describes it as the hardest-hit network. The available summary does not break Ethereum's figure down by attack category.
Solana rises, Arbitrum steps back
The chain-ranking shift is the more notable read for the tape. Blockaid found Solana moved to second place for hack losses in H1 2026, a slot previously held by Arbitrum. Key compromises, the firm reported, were the primary factor.
Key compromises refer to private-key theft and wallet-level breaches, where an attacker gains control of a signing key rather than exploiting a flaw in on-chain code. That makes Solana's losses in this period a custody and infrastructure story, separate from the base protocol. Whether the compromises targeted exchange wallets or protocol infrastructure is not specified in Blockaid's published summary.
What to watch
A full chain-by-chain loss total and attack-vector breakdown from Blockaid would sharpen the picture for $ETH and $SOL. Until those figures are public, the ranking itself is the print: Ethereum first, Solana second, Arbitrum displaced.