The former CEO of Zondacrypto, one of Poland’s most prominent cryptocurrency exchanges, is now cooperating with prosecutors in a bid for a lighter sentence as authorities unravel what appears to be one of Europe’s largest crypto fraud cases.
Przemysław Kral faces charges of large-scale fraud and is working with the Regional Prosecutor’s Office in Katowice under Poland’s Article 60 sentencing mechanism, a legal tool designed to incentivize defendants to provide information about co-conspirators in exchange for reduced penalties.
A $650 million hole and a vanishing founder
Customer losses initially estimated at around 350 million PLN, roughly $80 million to $97 million, have now swelled to approximately €560 million, or around $650 million. Over 3,600 complaints have been filed with prosecutors, and the victim count stretches into the tens of thousands.
The exchange’s website went dark in April 2026. Its Estonian operating license was suspended the following month and formally revoked on June 29, 2026.
The exchange’s founder, Sylwester Suszek, disappeared in March 2022. Kral stated publicly in April 2026 that access to a cold wallet containing 4,503 BTC depended solely on Suszek, a claim that might have generated more sympathy if on-chain data hadn’t shown significant outflows from that wallet well before the exchange collapsed.
Prosecutors have seized roughly 250 terabytes of transaction records and client data. The investigation has also uncovered connections to organized crime, though the precise nature of those links is still under examination.
The anatomy of a collapse
The exchange’s native token, ZND, has effectively gone to zero, dropping more than 99.9% since the collapse.
Kral’s decision to cooperate with prosecutors adds a new dimension. The Article 60 mechanism in Polish law allows courts to impose sentences below the statutory minimum when a defendant provides substantial evidence against others involved in the crime.
At current market prices, 4,503 BTC would be worth hundreds of millions of dollars. Kral stated that claiming one vanished individual held sole custody of that Bitcoin reflects either staggering incompetence or deliberate design.
Regulatory aftershocks across Europe
Estonia’s decision to revoke Zondacrypto’s license came after the damage was already done. The country once positioned itself as a crypto-friendly jurisdiction, issuing hundreds of exchange licenses under relatively permissive standards.
The Markets in Crypto-Assets (MiCA) regulation imposes requirements around asset segregation, proof of reserves, and governance standards that, in theory, would make a Zondacrypto-style collapse harder to pull off.
The investigation in Katowice is far from over. With 250 terabytes of data to sift through and a cooperating defendant providing testimony, prosecutors appear to be building a case that extends well beyond a single CEO. The organized crime connections add another layer of complexity.