Polish Court Approves Detention of Fifth Suspect in Zondacrypto Crypto Exchange Investigation
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You might want to know
Was the newly detained suspect part of a coordinated effort to misappropriate client funds from Zondacrypto?
What evidence do prosecutors cite connecting transfers and property purchases to alleged criminal activity?
Main Topic
A Polish court has authorized pretrial detention for a fifth suspect in the investigation surrounding Zondacrypto, a cryptocurrency exchange formerly known as BitBay. Prosecutors announced that Roman Ż. (using the Polish convention of abbreviated surnames) was charged with membership in an organized criminal group and with misappropriating clients' funds through computer fraud. The detention order follows allegations that the group manipulated exchange data and operations to divert client assets.
Authorities allege the group carried out unauthorized modifications — including changes, deletions and additions — to the exchange's records and interfered with the processes by which the platform handled and transmitted data. Prosecutors say those actions resulted in the loss of at least 7.8 million złoty (roughly $2 million) from exchange users' accounts. If convicted on charges that include organized crime membership and computer fraud, the suspect faces a possible sentence of up to 10 years.
Police detained the suspect in Silesia and seized documents from the exchange. According to reports, the suspect denied the charges and provided a statement to investigators. This arrest follows earlier detentions in the same case: three individuals — identified as Anna P., Jaromira W. and Rafał Z. — were placed in pretrial custody for three months on September 4, facing multiple allegations related to asset transfers and record falsification.
The prosecution's broader account describes a group operating from 2020 to 2026 with the alleged objective of taking control of assets belonging to Zondacrypto's founder, Sylwester Suszek. Zondacrypto originated in Katowice in 2014 as BitBay, founded by Suszek. In 2020, the entity shifted its registration to Estonia under a parent company, BB Trade Estonia, and rebranded. The exchange has claimed a large user base, reportedly around 1.3 million clients, many of them in Poland.
Prosecutors point to a range of specific transactions and actions they say support their case. Among the accusations are that nearly €8 million left the operator's account last October for the purchase of property in France, that a €2.9 million loan was recorded as repaid when it had not been, and that two Katowice properties — valued at 700,000 and 800,000 złoty — were transferred without payment. The prosecution also alleges that 7.5 million złoty was laundered through sham property purchases and that an additional 1.7 million złoty is involved in related counts. These allegations, if proven, depict a complex pattern of transfers and property deals used to conceal or convert exchanged funds.
One line of inquiry concerns the circumstances surrounding Suszek himself. Prosecutors allege that Anna P. obstructed the investigation into his reported deprivation of liberty by removing a hard drive from a filling-station CCTV recorder and that she encouraged false testimony. All three detained individuals have denied the charges. The regional prosecutor's office in Katowice opened the investigation in April into large-scale fraud and money laundering and says it has received several thousand complaints connected to the matter.
The exchange reportedly froze withdrawals and effectively ceased normal operations in April. Przemysław Kral, who reportedly became chief executive after Suszek's disappearance in March 2022, was last seen in mid-April after indicating to customers that the exchange controlled 4,500 BTC that only Suszek could unlock. In June, Estonia's financial intelligence authority revoked BB Trade Estonia's license.
This investigation highlights three intersecting risks in crypto platforms: operational security vulnerabilities, the potential for internal or external manipulation of platform data, and the complications that arise when cross-border corporate structures are involved. These factors complicate both user protections and law enforcement responses.
Key Insights Table
| Aspect | Description |
|---|---|
| Alleged Financial Loss | Prosecutors allege at least 7.8 million złoty diverted from user accounts and additional transfers equivalent to nearly €8 million linked to property purchases. |
| Charges | Suspects face counts including organized crime membership, computer fraud, large-scale fraud and money laundering. |
| Operational Claims | Allegations include unauthorized changes to exchange data and interference with data processing and transmission. |
| Cross-border Elements | The exchange moved registration to Estonia in 2020; related corporate and license issues span jurisdictions. |
| Investigative Actions | Multiple arrests, document seizures, and pretrial detentions have been ordered as prosecutors build their case. |
Afterwards...
Looking ahead, the case underscores several areas where further technological and regulatory work could reduce similar risks. Improved forensic tools for auditing ledger integrity and detecting unauthorized data alterations would strengthen investigations and civil protections. Better standards for custody and multi-signature controls for large cryptocurrency holdings could reduce single points of failure. Enhanced cross-border cooperation and regulatory harmonization — particularly for platforms that relocate registration or operate across jurisdictions — would help clarify responsibilities and speed enforcement actions. Finally, investment in transparent, tamper-evident logging and independent third-party audits could improve trust in centralized exchanges while regulatory frameworks adapt to the evolving landscape.
Exploring these technological and policy areas will be important for preventing and responding to complex financial crimes involving digital assets.