Ethereum Developer Freed in Turkey, Pledges $500K to Tornado Cash Co-Founder’s Defense

King A

August 12, 2025

Ethereum

Ethereum Developer Freed in Turkey, Pledges $500K to Tornado Cash Co-Founder’s Defense

Key Takeaways:

  • Argentine developer “Fede’s intern” freed after detention in Turkey over alleged Ethereum misuse.
  • Detention linked to academic research on Tornado Cash deanonymization.
  • Pledges $500K to Roman Storm’s legal appeal after guilty verdict.

A high-profile detention involving blockchain developer “Fede’s intern” ended with his release by Turkish authorities this week.

The Argentine coder, held in Izmir over alleged links to Ethereum misuse, has vowed to contribute $500,000 to Tornado Cash co-founder Roman Storm’s legal defense, following Storm’s recent conviction in New York.

Connection to Privacy Protocol

According to Fede’s intern, his arrest stemmed from accusations by Turkey’s Ministry of Interior connecting him to a privacy protocol. His team had published research and code revealing heuristics to deanonymize Tornado Cash users — a project later linked to money laundering allegations.

He stressed that their work was purely academic and did not involve creating privacy features or facilitating illegal activity.

The incident parallels the 2022 arrest of Tornado Cash developer Alexey Pertsev and underscores heightened scrutiny of open-source privacy tools. Fede’s intern, who works with Lambda Class and other blockchain projects, said he still does not fully understand the legal basis for his detention.

Donation to Roman Storm’s Appeal

In solidarity, Fede’s intern pledged $500,000 to Roman Storm’s defense — ten times Lambda Class’s original $50,000 plan — citing the importance of defending builders’ rights.

Roman Storm, convicted last week of operating an unlicensed money transmitter, faces an appeal. The Ethereum Foundation has offered to match donations up to $500,000, signaling broad industry support.

Final Thoughts

This case reflects the growing tension between privacy research and regulatory enforcement. As legal battles mount, developers may increasingly face challenges that test the limits of open-source freedoms.

Frequently Asked Questions

Why was Fede’s intern detained?
He was accused of involvement with Ethereum misuse tied to a privacy protocol.

What is Tornado Cash?
A blockchain-based cryptocurrency mixer accused of facilitating illicit transactions.

Why is Roman Storm’s case significant?
It sets a precedent for prosecuting developers of privacy tools.