In early 2024, a technology professional in the United Kingdom deposited £228,000 (approximately $289,000) into what appeared to be a DeFi yield farming platform. The platform had a professional inter...
Background: The Platform That Looked Legitimate
In early 2024, a technology professional in the United Kingdom deposited £228,000 (approximately $289,000) into what appeared to be a DeFi yield farming platform. The platform had a professional interface, apparently functioning transaction confirmations, and showed consistent returns of 28-35% annually on stablecoin deposits. The client found it through a targeted social media advertisement.
The Exploit: Malicious Smart Contract Approval
The critical moment occurred when the client approved what the platform described as a "liquidity optimisation" transaction. In reality, this was a setApproval transaction granting unlimited spending rights over both the client's USDT and ETH holdings to the attacker's contract address. Within 40 minutes, the contract drained the client's wallet completely — moving $289,000 in USDT and ETH through nine intermediate addresses before depositing at a centralised exchange.
Day 1: The Investigation Begins
The client contacted us within 24 hours of discovering the drain. Our forensics team decoded the malicious approval transaction within the first two hours, fully documenting the attack mechanism. The nine-wallet intermediate chain was traced using Ethereum blockchain analysis tools, revealing the exchange deposit address through cluster analysis and known address matching.
Days 1-3: Exchange Contact and Freeze Request
We identified the exchange as a major European regulated platform with established compliance procedures. Within 72 hours of engagement, we submitted a comprehensive forensic package to their compliance team — including the full transaction chain, attack documentation, and client's proof of wallet ownership. The exchange acknowledged receipt within 24 hours.
Days 6-52: The Legal Process
The exchange's compliance team froze the account within six days of our submission. Converting the freeze to a return required additional legal documentation — preparation of which added approximately 12 days to the timeline. The client's UK solicitor was briefed with our forensic report to apply parallel legal pressure. Final confirmation of the return was received on day 52.
What Made Recovery Possible
Several factors made this case recoverable: the client reported within 24 hours; the funds had not yet been withdrawn to fiat; the exchange was regulated and cooperative; the blockchain evidence was clear and well-documented; and parallel legal pressure supplemented the compliance request. Cases like this illustrate both what makes recovery possible and the importance of acting immediately.
This case is published with the client's explicit permission. Names, employer details, and precise location have been changed. The amounts, timeline, and technical details are accurate.