Nostra, a lending protocol on Starknet, was exploited through manipulation of its oracle price feed for NSTR, allowing the attacker to use overvalued collateral to borrow approximately $3.5 million in ETH, STRK, USDC, USDT, WBTC, and DAIv1. The protocol has paused lending, borrowing, withdrawals, and liquidations while investigating. The attacker also bridged approximately $1.92 million to Ethereum, comprising 234.57 ETH and 1.3 million DAI. Crypto sector losses reached $1.1 billion in H1 2026 across more than 212 on-chain incidents, with Ethereum and Solana as the most affected chains at $332 million and $326 million respectively.
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