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Poland's missing exchange founder and the 4,500 BTC nobody else can sign for
Poland's largest crypto exchange has changed names twice since its founder vanished in 2022. Neither change moves the roughly 4,500 BTC reportedly under his personal control.
The Investor · Invest desk
What happened
- Sylwester Suszek founded the Polish crypto exchange BitBay in 2014, and it became one of the largest crypto exchanges in Central Europe.
- Suszek disappeared on March 10, 2022. His last confirmed location was a fuel base in Czeladzi, Poland, where he met an associate identified as Marian W.; his phone signal dropped shortly after 15:08 that afternoon, and his white Porsche Taycan was later found abandoned.
- Marian W. was subsequently linked to organized crime and by late 2024 faced kidnapping charges, though the full scope of his alleged involvement in Suszek's disappearance remains under investigation.
- Despite years of police work, Suszek has not been found, no body has been recovered and no confirmed sighting has surfaced; the case remains officially open and unresolved.
- The exchange rebranded to Zonda in 2021 and again to Zondacrypto by 2023, with Przemyslaw Kral installed as the new president overseeing operations.
Compiled by The InvestorSomething wrong?How this is made
Why it matters
Hot-wallet breaches get the audit budget because they can be modelled. A single natural person holding roughly 4,500 BTC has no attack surface to harden and no patch cycle [6]. The failure mode is one human being's availability, and it triggered on an afternoon in Czeladzi when a phone signal stopped [2].
Nothing the company did afterwards touches that. The exchange became Zonda in 2021 and Zondacrypto in 2023, with Przemyslaw Kral installed as president [5]. A new name and a new president do not produce a signature.
Crypto Briefing draws the obvious comparison, to QuadrigaCX, where Gerald Cotten's death left about $190 million in crypto inaccessible [7]. Divide that by 4,500 and the break-even is about $42,200 per coin [11]. Above that bitcoin price, one man's reported personal holding at a regional Central European venue was worth more than the entire Canadian hole. Peak monthly volumes reported in the billions [10] suggest the depositor base that formed around the arrangement was not small.
The figure deserves the hedge it comes with. The 4,500 BTC is what was believed to be under Suszek's control [6], not an address set anyone has published. Worth noting too who has been supplying the pressure and the information: his sister Nicole, through public appeals and legal actions, and private investigators hired by affected investors, working alongside official channels [9]. When the family of a missing founder and the customers' own hired help are the visible sources, the missing exchange attestation is the second fact in the story.
Merging the files, which Polish authorities did by 2026 with data seizures reaching Estonia and Malta [8], puts solvency and violent crime into one workstream. The associate Suszek met that day, Marian W., was later linked to organized crime and by late 2024 faced kidnapping charges, with the scope of any involvement in the disappearance still under investigation [3]. The case itself remains open, with no body recovered and no confirmed sighting [4]. That is what keeps the coins where they are. A missing person is not a settled estate, so there is no event that hands authority to anyone else, and four years of police work has not produced one [4].
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