December 11, 2023

Hackers stole $100 million from the Harmony One bridge

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Hackers stole $100 million from the Harmony One bridge

The Harmony One project team reported that the Horizon bridge between the Ethereum, Binance Chain and Bitcoin blockchains was hacked. Hackers managed to steal $100 million worth of tokens.

There is no information yet about what kind of vulnerabilityused by attackers. The Harmony One developers reported the suspension of the Horizon bridge, but hackers managed to carry out 11 transactions with various tokens. The total losses amounted to about $100 million.


“We have already started working with nationalauthorities and computer security specialists to identify the criminal and recover stolen funds. We have also notified cryptocurrency exchanges and are working tirelessly. Note that the vulnerability did not affect the bridge with BTC. All funds and assets stored in decentralized storage are safe,” Harmony representatives wrote.

The stolen funds included nearly $10 million instablecoins USDT, more than $41 million in USDC, $5.5 million in BUSD and about 6 million in DAI. The attackers also managed to steal 592 wBTC, 415,000 SUSHI tokens, 43 wETH and others. After receiving the funds, the hackers began exchanging tokens using the decentralized exchange Uniswap.

Note that back in early April, Harmony developers were warned about a possible hacking of the Horizon bridge wallet on the Ethereum network - the wallet required only two signatures to withdraw funds.

In mid-June, the DeFi Inverse Finance protocol was hacked for the second time. This time, hackers stole $1.2 million in BTC and USDT.