Hack history / 2020 / Hack or exploit
LuBian
Hack or exploit on Dec 20, 2020 · Weak Key Generation
IN REVIEWSOURCES DISAGREE ON DATE OR LOSS · 2 SOURCES
Lost
$3.50B
dollars at the time
Returned
none listed
as the sources state it
Rank
#2
among thefts by dollars lost
What happened
On December 28, 2020, LuBian Bitcoin mining pool (6% of network hashrate in 2020) was hacked. An attacker exploited weak key generation in LuBian's infrastructure to brute-force private keys and steal 127,426 BTC (~$3.5B).
In review: sources disagree on the date.
Details
- Date
- Dec 20, 2020
- Kind
- Hack or exploit
- Method
- Weak Key Generation
- How in
- Keys, accounts and infrastructure
- Target
- Other
- Chains
- Bitcoin
Reported by
Cite this page
SwanBluechip, "LuBian hack, Dec 20, 2020: $3.50B lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht41400b9c16/ (data as of 2026-10-31).