TechHacker reused one authorization message 1,490 times in massive crypto payout loop

The ICON Foundation said an Aug. 27 replay exploit reused two legitimate withdrawal messages 1,492 times, releasing 119.866 million ICX and 531,600 bnUSD. It put the net loss so far at about 150.2 ETH and 31,204 USDC, with most ICX traced and frozen. The flaw altered part of a withdrawal identifier without changing the signed payload, making repeated calls appear unique.

ICONreplay exploitcrypto security

CCryptoSlate★★☆☆☆2026-09-01 17:40Original