Nearly $200 Million In Cryptocurrency Stolen In Euler Finance Attack

Cryptocurrency is becoming increasingly popular, but it is not without risk. Recently, the Euler Finance platform was attacked, resulting in the loss of almost $200 million in cryptocurrency. In this blog post, we will examine what transpired, how much was taken, and what actions can be taken to avoid such incidents in the future. We will also investigate Euler Finance and how it was hacked. You will have a better understanding of the dangers linked with cryptocurrency and what can be done to forestall them at the conclusion of this essay.

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What Is Euler Finance?

The cryptocurrency market was shaken on Sunday as nearly $200 million of Ethereum and Euler tokens were stolen from Euler Finance, a decentralized finance (DeFi) lender. This attack emphasizes the persistent security issues faced by DeFi protocols, as more users are drawn to these types of applications.


Euler Finance is a decentralized protocol that automates yield farming, providing users with access to liquidity pools and staking rewards. On Sunday, an unknown band of cybercriminals managed to obtain access to the platform’s code and stole various digital assets, including $135.8 million in stETH, $33.85 million in USDC, $18.5 million in WBTC, and $8.75 million in DAI.

The team at Euler Finance responded quickly to the breach by reimbursing all users impacted by the assault and taking steps to prevent similar events from occurring in the future. Additional security measures, such as multi-factor authentication and joining bug bounty programs with third-party companies that specialize in identifying vulnerabilities within codebases before being exploited by hackers or malicious actors, have been implemented.

Investigations into how the hacker exfiltrated data are still ongoing, but this reminds everyone how crucial proper security measures are when dealing with crypto assets or any critical information saved online, especially when dealing with Decentralized Finance applications like Euler Finance. These have gained popularity in recent years, providing users access to liquidity pools without depending on traditional financial institutions or intermediaries while keeping fees low.

An Overview Of The Euler Finance Smart Contract Platform

The cryptocurrency market experienced a significant security breach due to the recent Euler Finance attack, resulting in the theft of nearly $197 million in cryptocurrencies. This attack emphasizes the importance of secure smart contract deployment and understanding how cybercriminal technology can be used to steal digital assets from exchanges. In this section, we will provide an overview of the Euler Finance Smart Contract Platform, discuss how and why the attack occurred, detail the losses and recovery efforts, evaluate the impact of security breaches on the cryptocurrency market, and outline preventative measures for future attacks.

The Euler Finance Smart Contract Platform is a decentralized finance (DeFi) platform constructed on Ethereum. It allows users to exchange cryptocurrencies for other digital assets. On March 6th, 2021, PeckShield, a blockchain monitoring firm, reported detecting a flash loan attack on Ethereum that enabled attackers to steal $197 million worth of cryptocurrencies from Euler Finance’s protocol. Flash loans are advanced technology that allows users to borrow funds immediately without the need for collateral or excellent credit. However, they can also be exploited by malicious actors using vulnerabilities in smart contracts for cybercrimes, such as the Euler Finance attack.

This attack is one of the most extensive cryptocurrency thefts ever recorded, provoking investors and researchers to question the security of decentralized finance protocols. Though it remains unclear who was behind the attack, there are indications suggesting malicious actors took advantage of vulnerabilities in the smart contracts written on Ethereum networks like those used by Euler Labs developers at their DeFi platform. Regardless of who or what caused the incident, it demonstrates how vulnerable digital assets can be when not properly secured, especially when dealing with advanced technologies such as flash loans.

This incident serves as a warning for anyone considering investing in cryptocurrency markets to ensure they deploy secure smart contracts. By doing so, investors can take the necessary security measures when engaging with these types of platforms.

How Much Money Was Stolen?

On March 13, Euler Finance, a decentralized finance (DeFi) platform, fell victim to a massive crypto heist, resulting in the theft of nearly $197 million in digital assets. This attack is one of the largest cryptocurrency thefts in history, leaving many investors wondering about its cause and how to prevent similar attacks in the future.

The hackers stole several valuable cryptocurrencies, including $135.8 million of stETH, $33.85 million of USDC, $18.5 million of WBTC, and $8.75 million of DAI, all of which are traded on exchanges worldwide. The identity of the hacker or hackers responsible for this attack remains unknown. Euler Labs confirmed that their security systems were breached but did not respond to requests for further comment.

Furthermore, an offer was made on March 14th to return 90% of the stolen funds if the perpetrators could keep the remaining 10% without facing any legal repercussions, but it is unknown whether this deal was accepted.

As cybercrime technology evolves at an alarming pace, criminals are increasingly targeting DeFi platforms like Euler Finance with flash loan attacks, making it challenging for companies and users to detect or protect against them.

This attack serves as a reminder of the importance of staying vigilant while using DeFi platforms, especially when dealing with substantial sums like those involved in this theft. It’s also essential to understand how flash loan attacks are carried out to better protect ourselves in the future. Additionally, this theft had a considerable impact on crypto markets globally, as prices of various coins/tokens dipped significantly after major media outlets reported the loss.

What Can Be Done To Prevent Such Attacks In The Future?

The recent Euler Finance attack highlights the vulnerability of DeFi protocols and the crucial role of crypto security. The attack resulted in the theft of almost $200 million in crypto assets, including stETH, USDC, WBTC, and DAI. Perpetrated by unidentified cybercriminals, this attack raised the value of digital assets undetected. This event serves as a stark reminder that all cryptocurrency users should take proactive measures to safeguard their investments from similar incidents in the future.


To protect your crypto wallets, it’s crucial to secure both online and offline wallets when dealing with cryptocurrencies like Bitcoin or Ethereum. Regular antivirus software updates can help identify and avoid potential scams or malicious activity from hackers. It’s also recommended that wallet storage is encrypted and offline, which can minimize your risk stemming from online attacks or malware.

Multi-level authentication and two-factor authentication should be utilized when logging into online wallets as an additional layer of protection against cyber threats. Hot and cold status wallets can also provide security against theft while providing access to funds needed down the line. Finally, researching blockchain projects thoroughly before investing any funds is an essential step in identifying areas where additional security measures may be necessary. Understanding the mechanics involved can help prevent similar attacks in the future.

Final Thoughts

“The Euler Finance attack has highlighted the importance of crypto users taking precautionary measures when dealing with digital assets. These measures range from encrypting wallets to utilizing multi-level authentication, ensuring that your funds remain safe and secure. It is also crucial to conduct thorough research on potential projects before investing, and to participate in bug bounty programs offered by third-party companies that specialize in identifying vulnerabilities in codebases. By following these practices, you can safeguard against similar attacks in the future.”