Bancor

Private Key Leakage

Estimated loss

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VERDICT —OUT OF SCOPE

Root cause is private-key / signer compromise — the on-chain contract behaved exactly as written. No pre-deployment source audit or bytecode review reaches the key-custody perimeter; this is operational-security territory (HSM/MPC hygiene, key rotation, hot-wallet isolation). Bytecode would show nothing wrong.

▰ METHOD

PRIVATE KEY

PRIVATE-KEY

Root cause

Root-cause analysis not yet published. The incident description below contains all currently available signal — review the attack transaction directly for definitive forensics.

Forensic narrative

The Bancor platform theft was related to the BancorConverter contract, and the attacker (hacker/mole) is very likely to get the private key of the 0x009bb5e9fcf28e5e601b7d0e9e821da6365d0a9c. Attack method (per SlowMist): Private Key Leakage. Reported loss: 24,984 ETH，3,236,967 BNT，229,356,645 NPXS，.

Primary source

https://zhuanlan.zhihu.com/p/39758950 ↗

Sourced from

slowmist

Technical record