Igor Igamberdiev
Igor Igamberdiev

@FrankResearcher

9 Tweets 29 reads May 19, 2021
1/9
Today we have witnessed the manipulation of XVS price —  the governance token of Venus Protocol on BSC.
This incident resulted in $200M+ DeFi liquidations and a $100M+ of protocol bad debt.
As usual, let’s analyze this situation below👇
2/9
The previous record for liquidation volume was held by Compound after the DAI price oracle incident ($88M).
Back then, Compound Open Price Feed was heavily criticized by the Chainlink community, but virtually the same manipulation was just done even with Chainlink.
3/9
The price in the oracle was able to almost double, which allowed at least two Venus accounts to borrow a large number of assets.
It is not clear where exactly Chainlink gets the price data for XVS but given there is basically only one liquid market, it doesn’t matter much.
4/9
One of the smart exploiters left Venus with $80M bad debt in BTC that they will never repay.
All their collateral has already been liquidated, so there is no point in someone repaying their debt.
5/9
They withdrew from Binance and used almost 1M XVS ($52M at current price) as collateral during the peak price.
From the protocol, they could borrow 4.2k BTC ($165M), which they sent to the BSC Token Hub.
6/9
The second guy was a little late (copycat?).
However, this did not stop them from creating $17M of bad debt to Venus.
7/9
They also withdrew about 490k XVS ($28M at current price) from Binance to be used as collateral.
They also sent borrowed 13.4k ETH ($39M) to the Token Hub.
8/9
These funds here were lost not by those who were supposed to become liquidation’ victims but by ordinary protocol users who deposit money in it.
Until Venus finds a way to get rid of the bad debt, the protocol is undercollateralized, and the bank run will be challenging.
9/9
I am sure that the actual damage from this case is greater than this figure, but the continuation of the analysis takes more time.
Perhaps later, I will find time to calculate all losses, as I did with Black Thursday.
@whiterabbit_hq/black-thursday-for-makerdao-8-32-million-was-liquidated-for-0-dai-36b83cac56b6" target="_blank" rel="noopener" onclick="event.stopPropagation()">medium.com

Loading suggestions...