Zilliqa’s Seven-Year Key Leak Puts Its Upbit Listing at Risk

2 weeks ago 4

Key Takeaways

A seven-year Ledger app flaw weakened signatures, allowing private keys to be reconstructed after roughly five native transactions.
ZIL fell to within about 1% of its all-time low.
Zilliqa told affected Ledger users to wait for official guidance rather than move funds on their own.

Upbit has placed Zilliqa under formal trading caution after a critical flaw in the Zilliqa Ledger app allowed private keys to be reconstructed from transaction signatures already visible onchain.

The South Korean exchange has not delisted ZIL. Spot trading remains available while Upbit reviews the incident, Zilliqa’s response and the protections being developed for affected balances.

This is important because the current designation gives Zilliqa time to resolve the security issue, but it also opens a direct path toward delisting if the exchange concludes that the vulnerability or its consequences have not been adequately addressed.