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Bitcoin fund lost 36% backing due to unnoticed software bug for 74 days

Reported by Pluang
Sep 10, 2026· 2 min read
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Key Takeaways
  • • Coinberry, a Toronto-based cryptocurrency exchange owned by WonderFi Technologies (backed by Kevin O'Leary), lost approximately $3 million in bitcoin due to a software glitch that allowed users to acquire bitcoin without payment.
  • • The exchange has recovered only one-third of the lost funds, with two-thirds of the $3 million still unrecovered from hundreds of affected customers as of the reporting date.
  • • The incident involved 120 bitcoins total, indicating significant operational risk in the platform's transaction processing systems and fund custody mechanisms.
  • • Coinberry filed a lawsuit seeking to recover the remaining lost bitcoin from customers who benefited from the glitch, marking a legal escalation of the incident.
Summary
Coinberry, the Toronto-based cryptocurrency marketplace owned by WonderFi Technologies Inc. (a company backed by venture investor Kevin O'Leary), disclosed a significant operational failure stemming from a software bug that resulted in approximately $3 million in bitcoin losses. According to reporting by Ethan Lou of the Financial Post, the glitch enabled users to acquire bitcoin on the platform without making corresponding payments, creating an immediate balance sheet exposure for the exchange.

The scale of the incident encompassed 120 bitcoins in total losses. At the time of disclosure in September 2022, Coinberry had managed to recover only one-third of the stolen funds, leaving two-thirds of the $3 million loss still outstanding across hundreds of customer accounts. This recovery rate indicates both the operational complexity of reversing unauthorized transactions in blockchain environments and potential difficulties in identifying and tracing beneficiary accounts.

Rather than absorbing the loss internally, Coinberry pursued legal action against the affected customers, filing a lawsuit to recover the remaining unrecovered bitcoin. This litigation strategy reflects the company's position that customers who received bitcoin through the software glitch bore responsibility for the loss, despite the technical failure originating from Coinberry's own systems. The incident raises operational governance concerns regarding transaction validation controls, fund reconciliation procedures, and the adequacy of internal controls at cryptocurrency exchanges operating in the retail market.

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Sources

1 outlet

AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Pluang Bitcoin fund lost 36% backing due to unnoticed software bug for 74 days