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Marcin Pióro is in custody. The CEO of Polish fintech Cinkciarz.pl was detained in the United States, ending what had become a lengthy international manhunt tied to one of Central Europe’s messiest currency exchange collapses.
Polish prosecutors confirmed the arrest publicly, and the Regional Prosecutor’s Office in Poznań put its name to the announcement. The U.S. court system now controls what happens next — extradition proceedings are coming, though the timeline is murky. It was a coordinated takedown involving U.S. authorities and Poland’s Central Bureau of Investigation, which had been tracking Pióro for months. Formal charges against him were filed back in March 2025, but by then he’d already left Poland. That gap gave prosecutors enough room to push for an international arrest warrant, which eventually climbed to an Interpol Red Notice in July 2025 — the kind of designation that puts someone on the list of the world’s most wanted. Not a small thing.
185 Million Zloty and 5,000 Clients Left Holding Nothing
The numbers keep getting worse. Customer losses tied to Cinkciarz.pl’s failure have now crossed 185 million zloty — up sharply from an earlier estimate of 112 million zloty. More than 5,000 clients are caught in that figure, and the registered creditor count in the bankruptcy process has reached around 8,000. The District Court in Zielona Góra declared the company bankrupt, opening the door for those creditors to pursue claims through court-managed proceedings. It’s a slow, grinding process, and a lot of those people are still waiting.
The trouble started becoming visible in October 2024, when Poland’s Financial Supervision Authority revoked the payment services license of Conotoxia — a subsidiary tied to Cinkciarz.pl’s operations. That triggered the broader investigation. Before the license was pulled, customers had already been complaining for months about serious delays in getting their money back from currency conversions. Some waited months. Small businesses and individuals who’d used the platform for routine financial transactions found themselves locked out of funds they needed. The situation deteriorated fast.
Cinkciarz.pl wasn’t some fly-by-night operation. Founded in 2006, it built a real reputation as a prominent online currency exchange across Central Europe. By 2024, that reputation was in ruins.
492 Bitcoins and a Combative Defense
One of the stranger threads in the investigation is the cryptocurrency angle. Polish investigators allege that Pióro held approximately 492 bitcoins — a significant stash that became a focal point as authorities tried to map out personal gains from the company’s operations. In a case already involving fraud and money laundering allegations, that kind of crypto holding draws obvious questions about where the money went.
Pióro didn’t go quietly before his arrest. He maintained his innocence throughout and publicly pushed back against Polish prosecutors, pursuing legal actions against banks and challenging regulatory decisions. The company itself tried to pivot — there were plans to restructure into a joint-stock company and apply for a full banking license. The Polish Financial Supervision Authority rejected that proposal, and losing that court battle basically sealed the company’s fate before the bankruptcy declaration came.
If convicted on the fraud and money laundering charges, Pióro faces up to 25 years in prison.
He’s not the only one in legal trouble. Former board member Robert Górny was detained in early 2025. Chief accountant Monika J. faced arrest mid-year. Additional charges have been brought against former managers and staff for alleged misuse of funds and involvement in organized criminal activity. The investigation keeps expanding as more details surface about how the company’s operations actually worked.
Extradition Fight Could Drag On
Getting Pióro back to Poland isn’t automatic. His legal team can contest the extradition request, and in international cases like this, that kind of challenge is pretty common. It can stretch proceedings out significantly. No one’s putting a firm date on when he’ll actually face a Polish court.
Meanwhile, the broader fallout from the bankruptcy grinds on. Thousands of creditors are navigating a legal process that’s slow by nature. Some of the affected individuals and businesses have been waiting since late 2024 for any meaningful resolution. The bankruptcy proceedings cover roughly 8,000 registered creditors — a number that alone speaks to how far the damage spread from what started as a currency exchange platform.
The probe that began with a license revocation ended up exposing what prosecutors describe as deep financial mismanagement across the company and its subsidiaries. Several former managers are already charged. More details keep emerging.
And somewhere in a U.S. detention facility, the man who built Cinkciarz.pl into a Central European fintech name is waiting to find out if he’ll be sent home to answer for it — with 492 bitcoins worth of questions still hanging over him.
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Frequently Asked Questions
What charges does Marcin Pióro face in Poland?
Pióro faces charges of fraud and money laundering connected to the collapse of Cinkciarz.pl, and could face up to 25 years in prison if convicted.
How many customers lost money in the Cinkciarz.pl collapse?
More than 5,000 clients suffered losses, with total customer damages now exceeding 185 million zloty — up from an earlier estimate of 112 million zloty.
What is the significance of the 492 bitcoins in the investigation?
Polish investigators allege Pióro personally held around 492 bitcoins, which became a key focus as authorities examined potential personal financial gains from the company’s operations.
