Share this article

Euler Finance Hacker Sends 51,000 Stolen Ether Back to Protocol

EUL tokens jumped 47% on the transfer of tokens.

Updated Mar 27, 2023, 5:25 p.m. Published Mar 25, 2023, 4:01 p.m.
(Azamat E/Unsplash)
(Azamat E/Unsplash)

The hacker behind Euler Finance’s $200 million exploit earlier this month returned a majority of the stolen funds to the protocol Saturday.

Euler's native EUL tokens were up 25% in the past 24 hours, with the majority of the move coming after the hacker returned tokens to the protocol, which may have fueled positive sentiment among traders.

STORY CONTINUES BELOW
Don't miss another story.Subscribe to the The Protocol Newsletter today. See all newsletters

Data from blockchain explorer Etherscan shows over 51,000 ether, valued at nearly $90 million as of Saturday, was sent back to the Euler deployer contract in early U.S. hours.

However, the exploiter made several other transactions that transferred tens of millions of dai stablecoins to another wallet, blockchain data shows.

Last week, Euler put out a $1 million bounty offer for the hacker to return the stolen funds. Developers asked for 90% of the stolen funds to be returned at the time.

The lending protocol suffered an exploit earlier this month that resulted in almost $200 million being lost over four transactions in , wrapped bitcoin (wBTC), staked ether (sETH) and USD coin (USDC).

The attacker used a flash loan to conduct the attack by temporarily tricking the protocol into falsely assuming it held varying amounts of eToken and dToken, as CoinDesk explained.

More For You

Protocol Research: GoPlus Security

GP Basic Image

What to know:

  • As of October 2025, GoPlus has generated $4.7M in total revenue across its product lines. The GoPlus App is the primary revenue driver, contributing $2.5M (approx. 53%), followed by the SafeToken Protocol at $1.7M.
  • GoPlus Intelligence's Token Security API averaged 717 million monthly calls year-to-date in 2025 , with a peak of nearly 1 billion calls in February 2025. Total blockchain-level requests, including transaction simulations, averaged an additional 350 million per month.
  • Since its January 2025 launch , the $GPS token has registered over $5B in total spot volume and $10B in derivatives volume in 2025. Monthly spot volume peaked in March 2025 at over $1.1B , while derivatives volume peaked the same month at over $4B.

More For You

Stripe-Backed Blockchain Tempo Starts Testnet; Kalshi, Mastercard, UBS Added as Partners

Art installation reminiscent of digital ecosystems

Tempo, built by Stripe and Paradigm, has started testing payment-focused blockchain and has onboard a slew of institutional partners.

What to know:

  • Stripe and Paradigm’s Tempo blockchain has launched its public testnet for real-world payment testing.
  • Kalshi, Klarna, Mastercard and UBS are among a wave of new institutional partners now involved in the project.
  • Tempo aims to offer low-cost, fast-settlement infrastructure for global payments as stablecoin adoption is accelerating globally.