Hack history / 2025 / Hack or exploit
UPCX
Hack or exploit on Apr 1, 2025 · Proxy Upgrade Hijack
SOURCES AGREE ON DATE AND LOSS · 2 SOURCES
Lost
$70M
dollars at the time
Returned
none listed
as the sources state it
Rank
#81
among thefts by dollars lost
What happened
On April 1, 2025, UPCX payment platform was exploited when an attacker used a compromised private key to upgrade the ProxyAdmin contract, enabling execution of withdrawByAdmin to drain 18.4M UPC tokens (~$70M) from three management accounts.
Details
- Date
- Apr 1, 2025
- Kind
- Hack or exploit
- Method
- Proxy Upgrade Hijack
- How in
- Smart contract bug
- Target
- DeFi protocol
- Chains
- Ethereum
Reported by
Related incidents
Cite this page
SwanBluechip, "UPCX hack, Apr 1, 2025: $70M lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht3a4168474d/ (data as of 2026-10-31).