Hack history / 2025 / Hack or exploit
Bigone
Hack or exploit on Jul 16, 2025 · Supply Chain Attack
IN REVIEWSOURCES AGREE ON DATE AND LOSS · 4 SOURCES
Lost
$27M
dollars at the time
Returned
none listed
as the sources state it
Rank
#165
among thefts by dollars lost
What happened
On July 16, 2025, BigONE crypto exchange suffered a supply chain attack where an attacker gained access to production infrastructure and modified critical backend logic to automatically approve fraudulent withdrawal requests. The attack drained approximately $27 million across five blockchains before being detected.
In review: possible duplicate within one source.
Details
- Date
- Jul 16, 2025
- Kind
- Hack or exploit
- Method
- Supply Chain Attack
- How in
- Keys, accounts and infrastructure
- Target
- Centralized exchange
- Chains
- Bitcoin, BNB Chain, Ethereum, Solana, Tron
Related incidents
Trust Wallet Wallet 2025 · Hack or exploit · $8.5M
AdsPower 2025 · Hack or exploit · $4.7M
PEPE 2025 · Hack or exploit · undisclosed
AdsPower 2025 · Hack or exploit · $4.7M
PEPE 2025 · Hack or exploit · undisclosed
Cite this page
SwanBluechip, "Bigone hack, Jul 16, 2025: $27M lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht3c57e1bc11/ (data as of 2026-11-01).