Notional Finance Hit by $1.7 Million Exploit From Integer Overflow Bug

An attacker drained roughly $1.73 million from Notional Finance’s legacy escrow contract early Friday, exploiting a coding flaw that made an enormous fabricated debt register as zero.

The stolen DAI and USDC became about 689 ether (ETH). The funds then went through Tornado Cash, a service that breaks the trail between wallets. Notional has said nothing publicly.

How the Notional Finance Exploit…