Hack history / 2018 / Hack or exploit
ZenCash
Hack or exploit on Jun 2, 2018 · Forged Proof
SOURCES AGREE ON DATE AND LOSS · 2 SOURCES
Lost
$550K
dollars at the time
Returned
none listed
as the sources state it
Rank
#1,115
among thefts by dollars lost
What happened
On June 2, 2018, ZenCash (now Horizen) suffered a 51% attack resulting in double-spend losses of over $500K. The attacker gained majority hashrate control and reorganized 38 blocks, executing double-spends of 13,000 and 6,600 ZEN across exchanges. The attack likely involved rented hashpower from NiceHash.
Details
- Date
- Jun 2, 2018
- Kind
- Hack or exploit
- Method
- Forged Proof
- How in
- Bridge and cross-chain
- Target
- Chain
- Chains
- ZenCash
Reported by
Related incidents
Cite this page
SwanBluechip, "ZenCash hack, Jun 2, 2018: $550K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht951f2d8b72/ (data as of 2026-10-31).