Fortress Protocol Hacked for $3 Million, Drained of All Funds

Fortress Protocol – an algorithmic cash market and defi lending protocol – has been drained of all funds following an oracle manipulation assault. The stolen crypto has since been bridged from Binance Sensible Chain to Ethereum and combined utilizing the privateness protocol Twister Money.

Shopping for Out the Protocol

Blockchain safety agency CertiK shared details about the hack with CryptoPotato on Monday. It started with the hacker utilizing ETH to buy a considerable quantity of FTS – the governance token managing the FTS protocol.

The quorum votes on Fortress loans’ governance contract is 400,000 FTS. That was value simply $18,000 on the time of the hack and represented a smaller variety of tokens than the attacker held. In different phrases, he now held the authority to go any protocol change proposal that he appreciated.

As such, he handed proposal ID 11, which modified the collateral issue on FTS tokens inside mortgage contracts from 0 to 700,000,000,000,000,000. He additionally up to date the worth oracle utilized by the mortgage contract such that the token’s value would replace, even when voting energy was zero.

“With these updates, the worth of the attacker’s collateral (FTS) was raised considerably, so the attacker was capable of borrow massive quantities of different tokens from the mortgage contracts,” defined CertiK over Twitter.

The attacker used his remaining FTS to borrow an enormous variety of tokens, and convert them to over 1000 ETH, and over 400,000 DAI – value over $3 million on the time of the hack. He then deployed a self-destruct mechanism encoded into his malicious good contract and swiftly transferred the stolen items to Twister Money.

The fortress protocol workforce stated they’re “completely devastated” by yesterday’s occasions. They’ve referred to as on the neighborhood to not deposit any property into Fortress, and for all obtainable companions to help in reclaiming the funds.

Twister Money: Felony Software of Selection

Each the ETH required to buy the hacker’s preliminary FTS, and the ETH representing the hacker’s stolen items got here and went via Twister Money. The blending protocol breaks the hyperlink between a sender and receiver’s tackle on Ethereum, letting the hacker maintain his id hid from begin to end.

The identical protocol has been helpful to quite a few crypto thieves over the previous few months. The particular person or group behind the $600 million Ronin hack in March is now solely accountable for 15% of funds being deposited into the mixer.

In January, an approximate $14.6 million in ETH stolen from was laundered via Twister.

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