The decentralized exchange GMX experienced a significant security breach related to the exploitation of its GLP pool on the Arbitrum platform. This incident highlighted new security approaches within the DeFi space.
Exploit Incident at GMX
On July 11, 2025, the decentralized exchange GMX faced a serious security breach, which involved the exploitation of its GLP pool on Arbitrum. The incident led to a steep decline in total value locked (TVL) and user activity on the GMX protocol.
Response and Fund Recovery
In response to the exploit, the attacker agreed to return the funds, starting with FRAX tokens, after GMX offered a $5 million bounty. This arrangement was followed by active communication through on-chain messages and project updates.
Trends in DeFi Following the Incident
While GMX opted for bounty negotiations, regulatory bodies like the SEC have not publicly commented on the incident. The negotiation of terms without law enforcement involvement suggests a trend in DeFi towards internal resolution over external intervention. This case is reminiscent of previous DeFi exploits, such as those affecting Curve and Poly Network, which highlight the need for bargain-based recovery in the sector.
The incident with GMX serves as a vivid example of how modern bounty methods in DeFi can help restore lost funds and maintain user trust in the platform.