Exploit Highlights Nonce Bias Vulnerabilities

[encrypted]

Professor Jaewoo Cho of Hansung University explained that the attack targeted biased or predictable nonces in Upbit’s signing system. Subtle statistical patterns across millions of signatures enabled attackers to recover private keys—a method requiring advanced cryptographic expertise and significant computing power.

[Abdul Khan]

Nonce bias attacks show even small flaws can lead to big exploits.