Origin Defi Protocol Suffers Massive Flash Loan Attack- OUSD Stablecoin Value Plunges 85%

Origin Defi Protocol Suffers Massive Flash Loan Attack- OUSD Stablecoin Value Plunges 85%
фото показано с : news.bitcoin.com

2020-11-19 13:15

The OUSD stablecoin issuer, Origin Protocol is the latest Defi protocol to fall victim to a flash loan attack. The attack, which occurred in the early hours of Tuesday, on November 17, resulted in the disappearance of tokens worth millions of dollars. Confirming the attack, one of the project’s leaders say they are now working with exchanges in order to identify the attacker, as well as to freeze the tokens before they are liquidated.

Funds Located

The Origin Protocol attack follows a similar incident at Value Defi on November 14 where the criminals stole $6 million worth of tokens. Explaining the attack in a blog post, Origin Protocol Co-founder Matthew Liu insists the stolen funds have been traced to a wallet, which the team is monitoring.

He also reveals that the attacker “used both Tornado Cash and Renbtc to wash and move funds.” According to Liu, there is “still 7,137 ETH and 2.249M DAI sitting in one of the attacker’s wallets.”

Although the Origin Protocol team says it has made progress understanding the attack and tracking the flow of funds, it still warns:

We are continuing to work to try and recover the funds. If you are still providing liquidity on Sushiswap, we advise that you should remove your funds as soon as possible. We also strongly advise that you do not attempt to buy or sell OUSD at this time.

Following the attack, the value of the OUSD stablecoin plunged and traded at $0.15 per token on November 17. Before the price collapse, the stablecoin had consistently been trading at par with the USD.

Reentrancy Bug

Meanwhile, Liu goes on to give details of how the attackers were able to pull this off, even as the Origin Protocol team thought the contract was safe. According to Liu, the “attack was a reentrancy bug in our contract.” He admits that their contract is only safe from such bugs “unless one of our supported stablecoins was attacking us.”

After executing the attack, the criminals then “withdrew most of the stablecoins from OUSD.”

Liu’s statement adds:

They were then able to take extra OUSD after withdrawing and sell it on Uniswap and Sushiswap for USDT in subsequent transactions.

The Origin Protocol team says it will conduct a “thorough transaction by transaction analysis will be forthcoming.” The team is also pleading with the attacker(s) to return the stolen funds after demonstrating their “superior skills as hackers.”

What are your thoughts on this latest flash loan attack? Share your views in the comments section below.

The post Origin Defi Protocol Suffers Massive Flash Loan Attack- OUSD Stablecoin Value Plunges 85% appeared first on Bitcoin News.

Similar to Notcoin - TapSwap on Solana Airdrops In 2024

origin »

BlockMason Credit Protocol (BCPT) на Currencies.ru

$ 0 (+0.00%)
Объем 24H $0
Изменеия 24h: 0.00 %, 7d: 0.04 %
Cегодня L: $0 - H: $0
Капитализация $0 Rank 99999
Цена в час новости $ 0.0195725 (-100%)

protocol attack origin defi stablecoin ousd flash

protocol attack → Результатов: 71


Decentralized Exchange Bisq Loses 3 Bitcoin (BTC) and 4,000 XMR ($230k) in an Attack

The decentralized bitcoin trading network Bisq has reported an attack that resulted in the loss of 3 BTC worth nearly $22,000 and 4,000 XMR worth $224,000. The open-source, peer-to-peer exchange that requires no registration to trade cryptos suffered an attack 24 hours ago where the attacker exploited a flaw in Bisq’s trade protocol. Statement on the […]

2020-4-9 20:31


Фото:

Mimblewimble Attack is ‘Factually Inaccurate’, Grin Team Responds

The claim that hired computing power could “break” the Mimblewimble privacy tool for Litecoin (LTC) is inaccurate, according to a response from the Grin development team.   Weakness Did Not Reveal Final Senders or Receivers The Grin team admitted that the protocol held a known weakness, but directing hired computing power from AWS did not constitute an ‘attack’.

2019-11-20 20:47


Sidechains vs Plasma vs Sharding

Special thanks to Jinglan Wang for review and feedback One question that often comes up is: how exactly is sharding different from sidechains or Plasma? All three architectures seem to involve a hub-and-spoke architecture with a central “main chain” that serves as the consensus backbone of the system, and a set of “child” chains containing actual user-level transactions.

2019-6-14 04:03


Bitcoin Cash exploit cripples network during scheduled hardfork upgrade

A bug was reportedly exploited on Bitcoin Cash during a scheduled hardfork upgrade of the protocol. For an hour and a half transactions went unprocessed, causing fees to skyrocket. A source familiar with the project says the exploit “looks like a timed attack,” while other rumors are circulating that the “attacker” placed a 180,000 BCH short […] The post Bitcoin Cash exploit cripples network during scheduled hardfork upgrade appeared first on CryptoSlate.

2019-5-16 21:43


Фото:

What Bitcoin Did Gets Technical with Crypto-Educator Jimmy Song

<iframe style="border: none" src="//html5-player. libsyn. com/embed/episode/id/7132345/height/90/theme/custom/autoplay/no/autonext/no/thumbnail/yes/preload/no/no_addthis/no/direction/backward/render-playlist/no/custom-color/87A93A/" height="90" width="100%" scrolling="no"  allowfullscreen webkitallowfullscreen mozallowfullscreen oallowfullscreen msallowfullscreen></iframe> On the latest episode of What Bitcoin Did, host Peter McCormack interviews Jimmy Song, a consultant in blockchain education, to take an in-depth look at a relatively recent incident in the world of cryptocurrency and use that as an example to segue into a deeper discussion on the possible trajectories of Bitcoin itself.

2018-10-6 00:05


Фото:

Governance, Part 2: Plutocracy Is Still Bad

Coin holder voting, both for governance of technical features, and for more extensive use cases like deciding who runs validator nodes and who receives money from development bounty funds, is unfortunately continuing to be popular, and so it seems worthwhile for me to write another post explaining why I (and Vlad Zamfir and others) do not consider it wise for Ethereum (or really, any base-layer blockchain) to start adopting these kinds of mechanisms in a tightly coupled form in any significant way.

2018-7-21 23:03


STARKs, Part I: Proofs with Polynomials

Special thanks to Eli Ben-Sasson for ongoing help, explanations and review, coming up with some of the examples used in this post, and most crucially of all inventing a lot of this stuff; thanks to Hsiao-wei Wang for reviewing Hopefully many people by now have heard of ZK-SNARKs, the general-purpose succinct zero knowledge proof technology that can be used for all sorts of usecases ranging from verifiable computation to privacy-preserving cryptocurrency.

2018-7-21 23:03


Фото:

Syscoin Hack Disrupts Binance Prompting Temporary Shutdown 96 BTC ($600,000) is a lot of money to pay for anything, not least a single .

The BTC they received was then withdrawn, prompting Binance to temporarily cease trading and to reset all APIs, which are believed to have facilitated the attack. Intriguingly, the Syscoin hack came just one day after blockchain security protocol Blue claimed that half of the top 50 cryptocurrencies were vulnerable to “destructive flaws”. Binance Cancels All

2018-7-4 16:43