VERDICT —OUT OF SCOPE
Root cause is infrastructure (DNS / cloud / database / third-party API) compromise, not on-chain contract logic. Pre-deployment source review would not surface this; coverage lives in cloud-security + supply-chain audit, separate discipline.
▰ METHOD
INFRASTRUCTURE
INFRASTRUCTURE
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
OKEx has confirmed that the latest 51% attack caused ETC losses of approximately $5.6 million. Out of concerns about the security of the ETC mainnet, it is considering removing ETC from the exchange. According to a report released by OKEx on Saturday, OKEx will repay all the ETC lost by users. Attack method (per SlowMist): 51% attack. Reported loss: $ 5,600,000.
Primary source
https://www.coindesk.com/markets/2020/08/17/okex-mulls-etc-delisting-after-losses-from-two-51-attacks/ ↗Sourced from
slowmist
Technical record
- chain
- —
- protocol
- OKEx
- bug_class
- infrastructure
- date_occurred
- 2020-08-18
- loss_usd
- $5,600,000
- source_id
- sm:okex::2020-08-18
Related — same bug class· infrastructure