Some dude exploited DeFi and Made 360 000 USD. by kingscrown

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technology · @kingscrown ·
$18.73
Some dude exploited DeFi and Made 360 000 USD.
Defi which is decentralized finance is a term where you can take loans in crypto collateral and get another crypto (usually stable coins but not only). I think the first blockchain that had this option was actually BTS where you could borrow or lend coins for bitUSD CNY etc. Loads of people used/still use Bitshares to make loans not trade on the DEX but i will skip this topic for now.

https://i.imgur.com/Aeu3jSd.png

Ethereum took the idea and built a huge ecosystem of loaning systems. To be clear crypto finances/DeFi also goes for places that are centralized but use crypto ie check [Bitcoin Lending and Loans Offer List](https://fuk.io/best-bitcoin-lending-sites-btc-loans-lend-cryptocurrency/).

But lets get back to DeFi on Ethereum.
What thre guy did is probably (people still investigate) took a flash loan from dyDx exchange for 10,000 eth and then..
https://i.imgur.com/fSUFS99.png

WBTC is 1:1 BTC on the Ethereum network. Keep in mind loan services are not superb liquid unlike exchanges.

The only tricky part he had to do it super fast aka with some coding contract as it had to be done in single transaction (!).
<a href="http://fuk.io/bitforex"><img src="https://i.imgur.com/qdB1IFz.png"></a>

He paid $8.73 in transaction fees to get free 360k USD worth of Ethereum.

https://i.imgur.com/oSmBXlT.png


To be clear the didnt hack anything just exploited contract in a way as he noticed if the loan is taken and paid back in same transaction you dont need money as its flash loan not normal one.

## Ethereum Markets
<a href="http://fuk.io/bitforex"><img src="https://i.imgur.com/ZFyXUy3.png"></a>
Out of the top10 i suggest only [BitForex](http://fuk.io/bitforex) to trade ETH coz ie [Lbank](http://fuk.io/lbank)  i have account and only bots ride it, impossible to trade it manually. [BitForex](http://fuk.io/bitforex) has loads of pairs, cheap fees and good options.



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vote details (723)
@chesatochi · 
The karma of this person will have an impact on him.
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@kingscrown · 
probably yes
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@sisterlove · 
i wish i was as smart as this dude, this guys a legend
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@kingscrown ·
$0.02
learn to code :)
👍  
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@flemingfarm · 
So where did the funds come from? Is bzx on hook for the amount to cover the $360K?
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@kingscrown · 
he took loan on 1 site for free, then dumped the coins on short, so he could pay the loan back and withdrawal. its a bit complex
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@steem-ua · 
#### Hi @kingscrown!

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Your **UA** account score is currently 7.246 which ranks you at **#69** across all Steem accounts.
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In our last Algorithmic Curation Round, consisting of 94 contributions, your post is ranked at **#3**. Congratulations! 
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@steemium ·
steemium-comment-1581993342972
2 USD has been spent to promote this content using [Steemium](https://steemium.com/?ref=some-dude-exploited-defi-and-made-360-000-usd) . <br> Learn more [here!](https://steemit.com/steem/@steemium/annoucing-steemium-steem-promotion-made-easy-cheap-and-intelligent)
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@acidyo · 
Downvoted due to buying votes from Steemium.


![image.png](https://cdn.steemitimages.com/DQmf4vkKptJu3pexx3BAMutWnAib3FJFm8qs7rMauqoChpw/image.png)
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