Arabic AR Chinese (Simplified) ZH-CN English EN French FR German DE Japanese JA Portuguese PT Russian RU Spanish ES Turkish TR
Connect with us

Hi, what are you looking for?

Binance

Ethereum-BSC bridge of Qubit Finance hacked 

X-Bridge, the cross-chain bridge of DeFi protocol Qubit Finance, has been exploited.

The cross-chain bridge of DeFi protocol Qubit Finance, called X-Bridge, has been exploited and lost $80 million in the process.

X-Bridge facilitates swapping tokens from Ethereum to Binance Smart Chain. In other words, when someone deposits an ERC-20 token to the bridge, they receive a BEP-20 token in return, which can then be used on Binance Smart Chain.

There was a “logical error” in X-Bridge’s smart contract code that led to the exploit, according to blockchain security firm CertiK. The error in the code allowed the attacker to withdraw tokens on Binance Smart Chain when none was deposited on Ethereum.

The attacker ended up netting 77,162 qXETH ($185 million), which they then used as collateral and borrowed other asserts from lending pools worth $80 million, according to CertiK.

These assets are 15,688 wETH ($37.6 million), 767 BTC-B ($28.5 million), around $9.5 million worth of various stablecoins, and about $5 million worth of CAKE, BUNNY, and MDX tokens.

While the attacker exploited X-Bridge for $185 million, they did not directly convert the 77,162 qXETH to ETH, thus they ended up profiting only $80 million through the above tokens, CertiK told The Block.

“This is by far the largest exploit of 2022 to date,” the firm added. Last year, DeFi projects lost $1.3 billion in hacks, according to CertiK.

Qubit Finance said it has contacted the exploiter to offer the maximum bounty. Meanwhile, it has disabled certain functions of X-Bridge until further notice, while claiming of funds is available.

,

theblockcrypto

Featured

Bitcoin Mining

Despite a $72 million rescue offer from creditors, concerns have been raised about the general viability of the Bitcoin trading community amid a protracted...

Ethereum

Ethereum started a fresh decline from the $1,320 resistance against the US Dollar. ETH is struggling and remains at a risk of a move...

Crypto News

According to a new announcement published by MetaMask’s founder, Consensys Software Inc, this Wednesday, December 14th, the leading Ethereum wallet has partnered with the world’s largest...

Ethereum

Ethereum faced a strong rejection near $1,300 against the US Dollar. ETH is declining, but there is a major support waiting near $1,240 and...