Synthetix Trader Rolls Back Broken Trades That Netted $1 Billion Profit
A rogue API caused Synthetix pricing to go wild. A bot profited, but the bot owner rolled back the trades.
In what amounts to a particularly heart-warming example of the power - and responsibilities - of decentralization, Synthetix founder Kain Warwick announced that an error that netted one legitimate user over $1 billion in profit has been fixed and that the user rolled back all the transactions in exchange for a bug bounty.
The error occurred when a commercial API began reporting wildly high prices for the Korean Won.
"Our price oracle has a mechanism for discarding outliers and should have absorbed this discrepancy gracefully, unfortunately the price feed for KRW was only being served by two API’s at that time due to an earlier unrelated outage which had not been caught by our exception reporting," wrote Warwick.
From the report:
Luckily the bot owner understood their preposterous position and agreed to send the crypto back, a noble and/or important part of growing ecosystems like this one.
"No funds were lost, the owner of the bot who exploited the issue agreed to reverse the trades," Warwick said. "He was unaware of the issue (his bot was fully automated) until after the news broke. He reached out on Reddit once he knew and we negotiated a bounty for reversing he trades. His goal was to build a profitable bot and he wanted to make sure the profit he had made up to that point, about 30k, was safe. So we paid him a bounty for reversing the trade, since his bot was the only one that was able to exploit the oracle defect."
Photo by Nanna Moilanen on Unsplash
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