DeFi Lender Sonne Finance Drained of $20 Million in Exploit

As an experienced analyst in the cryptocurrency market, I cannot help but express my deep concern over the recent security breach at Sonne Finance on Optimism. The theft of approximately $20 million from users through exploits in USDC and WETH contracts is a stark reminder of the risks inherent in the decentralized finance (DeFi) space.


A significant security incident struck Sonne Finance, a decentralized finance (DeFi) lending platform built on Optimism, a prominent Ethereum Layer 2 solution. This unfortunate event resulted in approximately $20 million in losses. The breach was executed in two distinct phases. In the initial attack, the perpetrators managed to pilfer around $3 million from Sonne Finance’s USDC and WETH contracts. Later on, they returned for a larger haul, successfully stealing an additional $17 million. Authorities are currently pursuing leads to identify and apprehend the individual or group responsible for this cybercrime.

As a crypto investor using Optimism, I’ve noticed that all markets have been temporarily halted for your safety. However, take comfort in knowing that the markets on Base are functioning normally. Further updates and details will be shared as soon as possible.

— Sonne Finance (@SonneFinance) May 15, 2024

Fiat’s Optimism coin, which is pegged to the US dollar and operated by Fiat, could result in a significant 74% loss for users who don’t withdraw their funds before Sonine Finance halts its operations with Optimism. Sonine Finance is currently investigating an issue related to Optimism.

Consider vacating SonneFinance promptly as approximately mid-six figures of borrowing liquidity remain accessible. Regrettably, @overnight_fi’s USD+ on Optimism is also affected adversely, resulting in a potential loss of 74% if markets are not exited prior to the deadline.

— Saul (@SaulCapital) May 14, 2024

Some speculate that the cause behind the ongoing investigation is potentially linked to the new lending feature in the cryptocurrency market. Following the recent exploit, the value of the native SONNE token dropped by 15%, resulting in a total market capitalization of $4.25 million for the platform.

DeFi Lender Sonne Finance Drained of $20 Million in Exploit

The DeFi sector’s latest incident underscores the need for enhanced security as the number of users relying on this technology expands. It is crucial to implement robust security protocols to prevent user trust from being eroded and to minimize the likelihood of recurring attacks.

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2024-05-15 05:56