Incident Overview
On September 27, 2026, multi-chain DEX DYORSWAP listed a network presented as GIWA Mainnet with chain ID 9134. That network was a scammer-built fake chain with a fraudulent bridge. Users deposited real Ethereum-mainnet ETH into the fake bridge, and the operators later drained about 766.25 ETH (about $2,000,000). Official GIWA, an Upbit-linked L2, said its mainnet was not live. DYORSWAP said its own contracts were not exploited, began treasury compensation, and has already paid more than 200 ETH, with tracing still ongoing.
Sources & References
This record presents information attributed to the linked sources. Incident dates describe the original event, not a new report. Reported loss figures reflect the source record and are not current market valuations.