ChainBleedv0.1 · open intel
← back to feed·INFRASTRUCTURE2018-05-18 · 8y ago
Incident · SLOWMIST

Monacoin

51% attack
Estimated loss
$90.0K
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

On May 18, a Reddit netizen posted that Monacoin suffered a 51% computing power attack, a selfish mining attack, and a time stamp attack. The exact time occurred from May 13 to May 15. Some exchanges that support Monacoin trading, such as Bittrex, Livecoin have closed Monacoin recharge. Attack method (per SlowMist): 51% attack. Reported loss: $ 90,000.

Primary source
https://www.reddit.com/r/monacoin/comments/8k7640/51_attack_on_monacoin/
Sourced from
slowmist
Technical record
chain
protocol
Monacoin
bug_class
infrastructure
date_occurred
2018-05-18
loss_usd
$90,000
source_id
sm:monacoin::2018-05-18
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