Polishprosecutors said today (Thursday) that Marcin Pióro, the fugitive chiefexecutive of online currency exchange Cinkciarz.pl, has been detained in theUnited States, ending one of the longest international manhunts in thecountry's fintech history.TheRegional Prosecutor's Office in Poznań confirmed the arrest ina statement, saying the office is now waiting on a US court to determinehow extradition proceedings will move forward. Officespokesperson Anna Marszałek told Polish news agency PAP that, given the timedifference between the two countries, there was no information yet on when theAmerican court would rule. She added that the court must first decide what formthe extradition will take.The arrestwas carried out by US authorities working with Polish counterparts from theCentral Bureau of Investigation and officers attached to the Criminal Bureau atNational Police Headquarters. The exact location of the arrest in the UnitedStates has not been disclosed by either side.Customer Losses Climb toMore than 185 Million ZlotyProsecutorssaid the estimated total damage caused by the failed platform has grown to morethan 185 million zloty, roughly $50 million at current exchange rates, withover 5,000 customers identified as victims. The number of formal complaintsfiled with the prosecutor's office is higher still, and authorities expect thecase file to keep expanding.That figureis well above the 112 million zloty estimate disclosedwhen the international warrant was first issued last summer, and roughly 60% higher than the 125 million zloty figure cited whenInterpol formalized the search in mid-2025.The probetraces back to October 2024, when the Polish Financial Supervision Authority,KNF, revoked the payment services licenseof Conotoxia, theCinkciarz.pl subsidiary that processed the bulk of the brand's currencyexchange flow. Within days the Poznań prosecutor's office opened a criminalinvestigation.From Interpol Red Noticeto American CustodyFormalcharges, including fraud and money laundering, were filed in March 2025 againstPióro and several other executives, but the CEO had already left Poland and could not be served. A Polishcourt approved his detention in absentia, paving the way for an internationalarrest warrant.The huntescalated in July 2025, when Interpolissued a Red Notice placing Pióro among the policing body's most wantedsuspects. He faces a maximum sentence of 25 years in prison if convicted on thePolish charges.Severalother figures connected to the company are already in Polish custody or underinvestigation. Former board member Robert Górny was detained for three monthsin early 2025, and chief accountant Monika J. wasarrested in mid-2025on charges connected to the alleged misuse of customer funds. Otherformer managers of Cinkciarz.pl and Conotoxia, along with staff responsible forcurrency liquidity on settlement accounts, have been charged with offensesranging from participation in an organized criminal group to money laundering.From Polish FintechDarling to Bankruptcy CourtFounded in2006 in the southwestern Polish city of Zielona Góra, Cinkciarz.pl rode thecountry's foreign currency boom to become one of Central Europe's best-knownonline exchanges, processing billions of zlotys in annual transaction volume.Sports sponsorships and corporate campaigns lifted the brand's profile acrossPoland.Thatpicture unraveled through 2024 and 2025. Customers began reporting that fundsdeposited for currency conversion were not being returned, with delaysstretching from days into months. Many ofthose affected had been routing life savings, mortgage payments and smallbusiness operating funds through the platform.TheDistrict Court in Zielona Góra eventually declared the company bankrupt, with proceedings now open forthousands of creditors to file claims. Around 8,000 creditors have registeredwith the bankruptcy trustee, according to Polish media reports.Crypto Holdings and aCombative DefenseThe casealso drew attention to Pióro's personal cryptocurrency holdings. Polishinvestigators previously alleged the executive held roughly 492 bitcoins, worthabout 196 million zloty on personal storage devices. The company said the coins had beenacquired by Pióro as a private individual starting in 2015.Throughoutthe probe, the executive maintained his innocence and used social media to pushback, accusing Polish prosecutors of misconduct. The companyitself pursued lawsuits against multiple Polish banks for allegedcollusion,challenged the KNF's license revocation in court, and at one point publiclyannounced plans to transform into a joint-stock companyand pursue a banking license, a move the regulator rejected outright. Cinkciarz.pllost its formal court dispute withthe KNF shortlybefore the bankruptcy ruling.How quicklyPióro is returned to Poland will depend on whether his legal team contests theextradition request. Polish authorities have flagged that such cases routinelyrun for months, and in some instances more than a year.This article was written by Damian Chmiel at www.financemagnates.com.