/crypto
sordum
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2 years ago
Harmony Bridge Hacked, $100 Million Worth of Ethereum Lost
On the 24th of June, the Horizon bridge connecting Harmony – a Layer-1 PoS blockchain built for native token ONE – to the Ethereum and Binance Chain ecosystem was hacked, leading to a loss of approximately $100 million in ETH. The exploit was announced on Twitter by the Harmony team, who stated that they are hunting for the culprit.
The Latest in a Series of Vulnerabilities
1/ The Harmony team has identified a theft occurring this morning on the Horizon bridge amounting to approx. $100MM. We have begun working with national authorities and forensic specialists to identify the culprit and retrieve the stolen funds.
More 🧵
— Harmony 💙 (@harmonyprotocol) June 23, 2022
The bridge has since been shut down to prevent further losses. Harmony devs have also clarified that the BTC bridge is unaffected.
The attack appears to have taken place over the span of 17 hours, starting with a transaction worth a whopping 4,919 ETH, followed by several smaller transactions ranging from 911 to 0.0003 ETH. The last one took place after the bridge had been shut down.
The hack is the latest in a series of exploits affecting the crypto space, such as the Axie Infinity drain, Solana Wormhole, or, more recently, the (misplaced) Optimism fiasco. Another recent vulnerability, the Demonic exploit, which affected multiple crypto wallets, was patched before any damage could be done.
Exchanges have reportedly been notified, as well as “national authorities and forensic specialists.” Unfortunately for Harmony, the former may not be of much help in the event the identity of the hacker is discovered, depending on the jurisdiction that the hacker may be located in.
“We have also notified exchanges and stopped the Horizon bridge to prevent further transactions. The team is all hands on deck as investigations continue. We will keep everyone up-to-date as we investigate this further and obtain more information.”
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