According to a report by blockchain data platform Chainalysis, $2 billion will be lost from cross-chain bridge hacks by 2022. In the report, Chainalysis claims that this is a significant threat to the trust-building of blockchain technology.
Moreover, researchers say bridge hacks are a favorite target for North Korean hackers – an estimated half of the $2 billion stolen.
This report went hot after the Nomad hack, in which nearly $191 million was stolen. It links the Ethereum, Avalanche, Evmos, Moonbeam, and Milkomeda blockchains. The Nomad Bridge exploit is the latest 13 separate bridge attacks in 2022.
The researchers charted the analysis of other hacks versus cross-chain bridge hacks, showing no apparent pattern. Before Q3 2021, bridge hacks did not exist. But Q1 2022 saw a peak in the amount of money stolen from bridges.
This coincides with a record amount of stolen money, mainly due to the Ronin Bridge Attack in late March, which resulted in $624 million of Ether (ETH) and USD Coin (USDC) stolen.
Cross-chain bridges are designed to transfer cryptocurrencies from one blockchain network to another.
Chainalysis explains that while bridge designs vary, users typically deposit their tokens from a chain into the bridge protocol, which is then locked into a contract. The user is then issued the equivalent of a parallel token in another chain.
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