Crypto Exchange FixedFloat Hacked: $26 Million in Bitcoin and Ether Stolen


In a shocking turn of events, decentralized crypto exchange FixedFloat fell victim to a major security breach, resulting in the theft of approximately $26 million worth of Bitcoin and Ether. The incident, which occurred over the weekend, has sent shockwaves through the cryptocurrency community and raised concerns about the vulnerability of non-custodial exchanges.

The Hack

FixedFloat, known for facilitating automated cryptocurrency exchanges, confirmed the theft after detecting unusual transaction activity on the blockchain. The on-chain data revealed that a suspicious address siphoned off 409 Bitcoin, valued at $21.1 million, and 1,728 Ether, worth around $4.85 million.

“The losses on Ethereum $4.8M, funds deposited to eXch. FixedFloat Wallet: 0x4E5B2e1dc63F6b91cb6Cd759936495434C7e972F Attacker Wallet: 0x85c4fF99bF0eCb24e02921b0D4b5d336523Fa085” – Cyvers Alerts

Attack and Exploitation

The incident unfolded when users began to complain about transaction processing issues on FixedFloat. Initially, the exchange attributed the problem to minor technical glitches and temporarily switched to maintenance mode. However, it was later revealed that the platform had fallen victim to an exploit.

Blockchain security researchers discovered that the attacker had started laundering the stolen funds through crypto exchanges and HitBTC. Remarkably, FixedFloat itself had been used in the past by hackers looking to launder funds due to its lack of user registration and Know Your Customer (KYC) verifications.

Past Security Incidents

This is not the first time FixedFloat has been targeted by hackers. In October, a hacker stole approximately $3 million worth of Avalanche’s native token, AVAX, from the Web3 social media app Stars Arena and funneled the funds through FixedFloat. However, the exchange has also successfully thwarted the efforts of some exploiters in the past, freezing $200,000 worth of ETH from the Curve Finance hacker in 2022.

Response and Investigation

Following the hack, FixedFloat acknowledged the security breach but refrained from providing detailed public comments. The team is currently focused on eliminating vulnerabilities, enhancing security measures, and conducting a thorough investigation into the incident. The exchange assured its users that the service will be available again soon.

“We confirm that there was indeed a hack and theft of funds. We are not yet ready to make public comments on this matter, as we are working to eliminate all possible vulnerabilities, improve security, and investigate. Our service will be available again soon.” – FixedFloat

Implications and Concerns

The FixedFloat hack has once again brought to light the challenges faced by non-custodial exchanges. While decentralized platforms offer greater user control and anonymity, they also expose users to higher risks. The lack of regulatory oversight and KYC requirements makes it easier for hackers to exploit vulnerabilities and launder stolen funds.

Crypto Exchange Security Measures

In light of the FixedFloat hack, it is crucial for crypto exchanges, both centralized and decentralized, to prioritize security measures. Implementing robust security protocols, conducting regular audits, and adhering to industry best practices can help mitigate the risk of such breaches. Additionally, exchanges should consider incorporating KYC procedures to deter money laundering attempts.

Industry Response and Collaborative Efforts

The cryptocurrency industry as a whole needs to come together to address security concerns and combat cyber threats. Collaboration between exchanges, blockchain security researchers, and regulatory bodies can facilitate the sharing of information and the development of proactive measures to prevent future hacks. Establishing industry-wide standards and promoting responsible trading practices can help protect users and enhance the overall security of the ecosystem.


The FixedFloat hack serves as a stark reminder of the vulnerabilities inherent in the world of cryptocurrencies. While the decentralized nature of exchanges offers advantages, it also presents challenges in terms of security and user protection. As the industry evolves, it is essential for exchanges to continuously strengthen their security measures and for users to exercise caution when engaging in cryptocurrency transactions. Only through collaborative efforts and a commitment to best practices can the crypto community build a more secure and resilient ecosystem.

Disclaimer: The information provided in this article is for informational purposes only and should not be considered financial or investment advice. Always conduct your own research and consult with a professional before making any investment decisions.