Hacker steals $100 million ETH from Harmony’s cross-chain bridge

Horizon, the Harmony blockchain network’s cross-chain bridge to Ethereum, has suffered a theft worth nearly $100 million in ETH.

The theft occurred Thursday morning, per a tweet thread posted by the Harmony team.

An address linked in the thread holds 85,837.251 ETH, worth approximately $98 million.

The Harmony devs said that its bitcoin bridge was unaffected.

Cross-chain bridges have come under attack in the post.

Earlier this year, a bridge connecting Axie Infinity’s Ronin sidechain with the Ethereum network was exploited, resulting in the loss of more than $600 million in crypto.