Hackers swipe $100 million in cryptocurrency from blockchain bridge Harmony


Hackers made off with about $100 million in cryptocurrency from a so-called blockchain bridge operated by Concord, including to the more than $1 billion already stolen in crypto up to now this 12 months.

Concord stated it notified different exchanges and stopped its bridge, known as Horizon, to forestall additional transactions as the corporate investigates the theft. One particular person account is considered behind the heist, the corporate stated Thursday in a collection of tweets. 

The corporate is “working with national authorities and forensic specialists to identify the culprit and retrieve the stolen funds,” Concord stated of the theft from its Horizon bridge that permits for the alternate of cash from multiple blockchains. In a later tweet, Concord stated it is working with the Federal Bureau of Investigation and cybersecurity companies to analyze the assault. 

Concord didn’t instantly reply to a request for remark.

Shaky bridge

Concord and different so-called blockchain bridges have been developed to simply accept a number of tokens as further cryptocurrencies are adopted and customers look to make transfers extra readily. Horizon gives cross-chain exchanges between the Ethereum and Binance Good Chain. 

Nevertheless, bridges are seen as particularly vulnerable to assault and are incessantly focused by cybercriminals, with $1.3 billion stolen from bridges within the first three months of the 12 months, in accordance with an estimate from researcher Chainalysis.

Assaults on Crypto.com in January, Wormhole in February and Ronin Network in March every resulted in multimillion-dollar losses. Cybersecurity consultants say hackers typically goal decentralized finance, or DeFi, platforms with weak safety. 

DeFi companies are usually constructed on public blockchains, permitting customers to alternate crypto backwards and forwards with out the necessity for a longtime monetary establishment like a financial institution or credit score union. 

In one other assault, hackers in April stole $182 million from DeFi service Beanstalk Farms. PeckShield, a blockchain safety firm in China, stated thieves used a “flash loan” to take advantage of safety weaknesses in Beanstalk. A flash mortgage is an unsecured mortgage that bypasses the necessity for collateral from the borrower by utilizing smart contracts requiring compensation by the the top of a transaction — often inside seconds or minutes.


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