DeFi protocol Gamma Strategies suffers an estimated $3.4 million exploit

Quick Take

  • Gamma Strategies experienced an exploit leading to a loss of an estimated $3.4 million.
  • The protocol has responded by disabling deposits to to its DeFi vaults, though withdrawals remain available.

Decentralized finance (DeFi) protocol Gamma Strategies suffered an exploit resulting in the loss of around $3.4 million, according to security analysts.

The protocol has taken immediate action to prevent further losses. The team has disabled deposits to all public DeFi vaults while ensuring that withdrawals remain active for users needing to access their funds.

"Our vaults will continue to be managed normally for now, but deposits are currently shut down until we identify and mitigate the problem," the team said

Security firms PeckShield and BlockSec both told The Block the incident resulted in estimated losses of $3.4 million, with the hacker taking over 1500 ether. BlockSec’s analysis points to a critical vulnerability in the protocol's "accounting mechanism."

The attacker manipulated the prices of specific liquid staking tokens and stablecoin vaults, enabling the creation of an excessive amount of LP tokens.

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“The root cause stems from the inconsistency between the accounting mechanisms for depositing and withdrawing used by Gamma Strategies, which results in a discrepancy between the liquidity and the shares,” BlockSec founder Yajin Zhou told The Block. “Exploiting this, the attacker could withdraw an excessive amount of tokens.”

Gamma Strategies is a decentralized asset management protocol built on Ethereum and other blockchains. It allows users to deposit funds into pools called “hypervisors” and earn a return on their investment through active liquidity management and market-making strategies.

Gamma Strategies did not immediately respond to a request for comment.


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© 2023 The Block. All Rights Reserved. This article is provided for informational purposes only. It is not offered or intended to be used as legal, tax, investment, financial, or other advice.

About Author

Vishal Chawla is The Block’s crypto ecosystems editor and has spent over six years covering tech protocols, cybersecurity, artificial intelligence and cloud computing. Vishal likes to delve deep into blockchain intricacies to ensure readers are well-informed about the continuously evolving crypto landscape. He is also a staunch advocate for rigorous security practices in the space. Before joining The Block, Vishal held positions at IDG ComputerWorld, CIO, and Crypto Briefing. He can be reached on Twitter at @vishal4c and via email at [email protected]

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