Polish Exchange Zonda Cannot Access 4,500 BTC as Founder Remains Missing

Zonda, once Poland's largest crypto exchange, disclosed on April 16, 2026 that a cold wallet holding 4,503 BTC — worth roughly $334 million — is inaccessible. CEO Przemysław Kral confirmed the wallet address publicly but said the private keys were never transferred to current management.

The reason traces back four years. Zonda's founder, Sylwester Suszek, disappeared on March 10, 2022, after a business meeting near Czeladź, Poland. He has not been found. Kral says Suszek was supposed to hand over the private keys during the company handover but never did.

From BitBay to Zonda

Suszek founded the exchange in 2014 under the name BitBay. It grew into Poland's dominant crypto platform, reportedly processing up to 1.5 billion Polish złoty in daily trading volume during the 2017 bull run. The exchange earned Suszek the nickname "Polish King of Bitcoin."

The platform's history was not clean. In 2018, Poland's Financial Supervision Authority added BitBay to its warning list, alleging unlicensed financial activities. Investigative reporting also exposed alleged links between some shareholders and individuals with criminal records, including convictions for VAT fraud and pimping.

Suszek sold the exchange to a US investor in 2021. It rebranded as Zonda, and Przemysław Kral — previously the company's chief legal officer — became CEO. Suszek disappeared less than a year later.

The 2022 Disappearance

Suszek was 34 when he vanished. Surveillance cameras at the fuel depot where he was last seen stopped working shortly before his meeting. His phone later pinged 320 kilometers away on a highway. His sister received a distorted audio message demanding 12 million Polish złoty in Bitcoin, with a threat: "In one week, you'll get a photo of the body."

No body was found. One person — the owner of the depot — was charged with unlawful deprivation of liberty but not arrested. The case remains open.

The April 2026 Crisis

Trouble resurfaced in early April 2026. Polish blockchain analytics firm Recoveris published an analysis alleging Zonda's hot wallet balances had dropped by 99%, raising insolvency concerns. Local press reported a regulatory probe by Polish authorities.

On April 6, Kral publicly denied insolvency, stating the exchange held more than 4,500 BTC. However, that statement came without disclosing the wallet address. The announcement itself triggered a run: Zonda normally processed around 100,000 withdrawal requests per year, but received more than 25,000 within hours and days of April 6.

On April 16, Kral posted a video disclosing the wallet address publicly for the first time. The address on Blockchain.com confirms 4,503 BTC, with the last transaction recorded in November 2025. The funds sit untouched — and unreachable.

What Kral Says

Kral denied any personal involvement in the missing keys or Suszek's disappearance. He framed his motivation directly: "So for all those who claim that I had anything to do with Sylwester's disappearance, this is the prime argument that I care the most about Sylwester being found."

He said the withdrawal surge was driven by negative media coverage, not exchange fundamentals. The company plans legal action over what Kral described as false claims. He also pledged to meet all customer withdrawal obligations.

Polish lawmaker Tomasz Mentzen said on X that Zonda may have lost cold wallet access when Suszek disappeared. Kral did not say the funds were permanently lost — only that the private keys were never handed over.

Regulatory Backdrop

Zonda registered in Estonia in 2021, amid uncertainty over Poland's delayed adoption of the EU's Markets in Crypto-Assets regulation. That decision now adds political friction. The exchange's troubles have become part of a broader debate over Poland's crypto regulatory posture, with lawmakers and regulators under pressure to respond.

The core problem is a practical one that cuts to Bitcoin's design: without private keys, no one controls the wallet. Nearly $334 million in BTC sits on-chain, publicly visible, and entirely frozen — contingent on a founder who has been missing for over four years.