Poland’s largest cryptocurrency exchange, Zondacrypto, is facing a severe crisis of confidence after its CEO Przemysław Kral publicly admitted that the exchange lost access to a Bitcoin wallet containing 4,503 BTC (approximately $350 million). The revelation triggered a massive wave of user withdrawals, draining nearly 99% of the exchange’s Bitcoin reserves.
Missing Founder and a Lost Wallet
According to Kral, the Bitcoin was purchased from Sylwester Suszek, the founder of the now-defunct BitBay exchange, who has been missing since March 2022. Kral claims he possesses legal ownership documents for the wallet but never received the private keys, as Suszek disappeared before completing the transfer. “When Sylwester was supposed to hand over the private keys to that address, according to these documents, he disappears instead,” Kral stated. He published the wallet address on social media to refute allegations of misappropriation, emphasizing that he cannot control the funds.
Bank Run Exposes Exchange Vulnerabilities
The disclosure sparked a panic among users, leading to a bank run that depleted Zondacrypto’s Bitcoin holdings by 99%. “No financial institution could survive this,” Kral admitted. He also strongly denied any involvement in Suszek’s disappearance, saying: “To all those who claim I had anything to do with Sylwester’s disappearance: this is the key argument that I care most about him being found. He may be watching this—I appeal to him to fulfill the agreement.”
Ongoing Investigation and Industry Impact
The disappearance of Suszek remains under investigation. One individual has been charged with kidnapping, but Suszek’s whereabouts are still unknown. The wallet in question received most of its Bitcoin back in 2016, with no significant transactions for over a decade. The incident has not only damaged trust in Zondacrypto but also raises broader questions about custody practices and regulatory oversight in Poland’s crypto sector.

