Earlier today, the proof-of-stake (PoS) blockchain Harmony Protocol tweeted an offer of a $1 million reward for information regarding the Thursday hack of its Ethereum-linked Horizon bridge, which resulted in the loss of $100 million in cryptocurrency.
The business also stated that if the money were returned, it would support no criminal prosecution.
Stephen Tse, the CEO of Harmony Protocol, also stated that there was no proof of a breach in the smart contract code. Furthermore, there was no indication that the Horizon platform was vulnerable. The Harmony blockchain’s consensus layer is still safe.
Security professionals on Friday provided some insights into the intrusion while the Harmony team was still conducting their probe. Using two likely compromised private addresses, the attacker took control of a multi-signature wallet used to deploy Harmony’s bridge, claims Polygon’s chief information security officer Mudit Gupta, and drained the cash.
According to Tse, his team has discovered proof that private keys were compromised, which resulted in the breach of our Horizon bridge.
He added that harmony would “continue taking steps to further tighten our operations and infrastructure security” while the inquiry was continuing.