The incident that we will review in this topic occurred when the global financial markets collapsed on March 12th, when a congestion in the Ethereum network caused some MakerDAO users to purchase over $8 million worth of crypto for $0.

to reveal a report Today, it was reported from data company Blocknative that an army of bots may be responsible.

Incredible forensic work by Tweet embed. If you think you know what happened on March 12th, this resulted in a zero bid Tweet embed Side auctions, read this. Strong evidence of a new class of attacks that all DeFi users (in fact, all blockchain users) should be aware of.

Read:Study: 98% of hedge fund CFOs expect them to invest in cryptocurrency by 2026

– Dan Elitzer (@delitzer) July 23, 2020

Looking at the decentralized finance sector, DeFi, we find that it has flourished and developed remarkably, as the value of the funds held in it increased to more than 3 billion dollars.

Given the incident title of the article, it is possible to say that this huge amount of money may be at stake in the event of a technical glitch.

This was also commented on by Dan Elitzer, a venture capitalist at IDEOVC, by saying:

This is solid evidence of a new class of attacks that all DeFi users should be aware of.

The robbery secured $8 million from the MakerDAO project.

MakerDAO is a new blockchain project responsible for stabilizing DAI, the latter being a cryptocurrency whose value is pegged to the dollar.

But it is not tied up by someone who keeps a cache of banknotes in a vault, instead, users lock other cryptocurrencies as collateral.

And in the event that the value of the collateral falls, they make sure to keep enough close to accommodate it.

Read:Kraken becomes America’s first cryptocurrency bank… What does that mean?

But this obviously has risks.

If the value of the collateral falls below the amount of DAI (that is, if there is less than $1 of collateral per 1 DAI), then there is a big problem.

A mechanism to solve this problem is that if the value drops significantly the guarantee is put up for auction, and anyone can usually buy it at a discount.

But what happened on March 12th is that a lot of the collateral went down in value at auction.

So someone can finally buy it for free.

Blocknative researchers dug into how this happened, and published a report stating the following:

An army of so-called “hammerbots” (a set of bots) has been launched on Ethereum, crowding the nodes with huge numbers of transactions.

Read:Coinbase plans to launch new services to access “Metaverse” and “NFT” storage

This slowed down the network, creating a long queue for “pending” transactions.

Congestion on the Ethereum network allowed some users, possibly behind the attack, to bid $0 at auctions without competition.

By offering higher transaction fees, they incentivized Ethereum miners to process their transactions before anyone else.

Anyone else trying to bid with low transaction fees finds no way.

Thus, more than $8.32 million worth of cryptocurrency was auctioned for nothing.

This means that DeFi may be growing rapidly, but the risks are also increasing at the same speed.

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