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Hack history / 2016 / Hack or exploit

Gatecoin

Hack or exploit on May 14, 2016 · Improper Access Control

SOURCES AGREE ON DATE AND LOSS · 2 SOURCES
Lost
$2M
dollars at the time
Returned
none listed
as the sources state it
Rank
#708
among thefts by dollars lost

What happened

Between May 9-12, 2016, Hong Kong-based Gatecoin suffered a breach where attackers exploited a server reboot disruption to reroute deposits from cold multi-signature wallets to a vulnerable hot wallet. Approximately 250 BTC and 185,000 ETH (~$2M) were stolen, representing 15% of exchange assets.

Details

Date
May 14, 2016
Kind
Hack or exploit
Method
Improper Access Control
How in
Smart contract bug
Target
Centralized exchange
Chains
Ethereum

Reported by

Cite this pageSwanBluechip, "Gatecoin hack, May 14, 2016: $2M lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/htbf324fea87/ (data as of 2026-11-01).
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