Question 1

Zilliqa の Ledger バグの影響を受けるのは誰ですか？

Accepted Answer

Only users who signed native, non-EVM ZIL transactions with a Ledger device face risk. Holders who move ZIL exclusively through EVM-compatible tooling, along with the Zilliqa SDKs, are not affected.

Question 2

攻撃者はこのバグを利用してどのように秘密鍵を盗んだのでしょうか？

Accepted Answer

The Ledger app copied the wrong 32 bytes from a 40-byte value. That fixed the top 64 bits of each signing nonce at zero, and the lost randomness let an attacker reconstruct a private key from about five or more affected signatures using public on-chain data.

Question 3

Zilliqa はいつ悪用の検出を行いましたか？

Accepted Answer

Zilliqa said it observed on-chain activity consistent with active exploitation on July 19. It isolated the root cause on July 21, then disclosed the vulnerability publicly on July 22. The project credited KuCoin for confirming the attack.

Zilliqa

Zilliqa、2019年のLedgerキー漏洩バグによりネイティブZIL取引を停止

鋭い要約を。
毎日。

Zilliqa

Zilliqa、2019年のLedgerキー漏洩バグによりネイティブZIL取引を停止

鋭い要約を。毎日。

鋭い要約を。
毎日。