Blockchain security firm data shows Ethereum and Solana accounted for nearly all stolen funds amid rising key-compromise attacks.
Crypto networks lost $2.58 billion to hacks in the first half of 2026, with Ethereum and Solana leading the tally. Ethereum remained the primary target due to its high-value applications, including restaking platforms and decentralized exchanges, while Solana saw a surge in losses from compromised private keys rather than smart contract exploits.
In 2025, total losses reached $2.58 billion across 63 incidents, with Ethereum and Arbitrum dominating stolen-fund flows. Solana’s losses jumped sharply from $127 million in 2025, driven by attacks on signer infrastructure linked to North Korea-backed groups, including breaches at Drift Protocol and Step Finance.
The shift in attack vectors highlights growing risks to organizational security, particularly for Solana, where over 98% of losses stemmed from compromised keys. Ethereum’s vulnerabilities, meanwhile, centered on bridge bugs and smart contract flaws.