Cryptocurrency hacking losses exceeded $1 billion in the first half of 2026, a survey showed, with the number of incidents the highest on a half-year basis. Cointelegraph, citing on-chain security firm Blockaid, said losses by network were concentrated on Ethereum and Solana. Ethereum losses were about $332 million and Solana about $326 million. The largest single case was a $292 million incident involving KelpDAO.

Repeated bridge hacks and falling yields are prompting institutional investors to question whether decentralised finance offers acceptable risk-adjusted returns. JPMorgan analysts say bridge security remains an industry challenge and raised doubts about broader institutional adoption. Large attacks on DeFi bridges this year totalled $328.6 million in losses. StateMind CEO and Symbiotic co-founder Misha Puchiatin says DeFi is overly complex and interconnected, making risks hard to assess. USDT yields on Aave lag U.S. Treasury rates.