The Harmony blockchain network hacker is yet to return the stolen funds from the Horizon Bridge token bridge. The exploiter seems to have rejected the Harmony team’s bounty offer of $1 million to return the $100 million stolen.
The funds from Harmony’s Horizon Bridge have begun to move into the Tornado Cash Ethererum mixer instead. This move shows that the attacker has no intention of accepting the $1 million bounty offered.
A total of 18,036.3 Ether (ETH), worth about $21 million, was moved out of the Horizon Bridge exploiter’s primary wallet at 03:10 am EST on Tuesday. These funds were then divided equally three ways and sent to three different addresses in single transactions, respectively.
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The first and second wallets that received ETH from the exploiter’s primary wallet have completed mixing the coins. They are now left with about 16.3 ETH collectively. The third wallet was busy sending batches of 100 ETH to Tornado in eight-minute intervals.
Meanwhile, the Harmony team has announced working with “two highly reputable blockchain tracing and analysis partners,” along with the United State Federal Bureau of Investigation, to investigate the hack.
According to reports, about $80 million in ETH is still in the explorer’s primary wallet. They could possibly return a portion of the stolen funds to Horizon. They may be taking a break as it has taken the exploiter over 13 hours to mix just $21 million.
Although the initial haul was valued at about $100 million at the time, positive ETH price fluctuations have increased the dollar value to $101.5 million.
Over $1 billion has been hacked so far in 222 from the Meter, Wormhole, Ronin, and now Horizon token bridges.