Hack history / 2023 / Hack or exploit
Arcadia V1
Hack or exploit on Jul 10, 2023 · Improper Access Control
ATTACK TX CONFIRMED ON CHAINSOURCES AGREE ON DATE AND LOSS · 4 SOURCES
Lost
$455K
sources: $400K to $460K
Returned
none listed
as the sources state it
Rank
#1,186
among thefts by dollars lost
What happened
On July 10, 2023, Arcadia Finance V1 vault was exploited via reentrancy in liquidation. Attacker registered a malicious contract as both router and whitelisted account, spoofing context to execute unauthorized withdrawals, draining ~$455-460K in LP tokens across Ethereum and Optimism.
Details
- Date
- Jul 10, 2023
- Kind
- Hack or exploit
- Method
- Improper Access Control
- How in
- Smart contract bug
- Target
- DeFi protocol
- Chains
- Ethereum, Optimism
Related incidents
Arcadia V2 2025 · Hack or exploit · $3.5M
Safemoon 2023 · Hack or exploit · $8.9M
Exactly 2023 · Hack or exploit · $7.5M
Terraport 2023 · Hack or exploit · $4M
Curve Finance MEV Bot 2023 · Hack or exploit · $2M
Safemoon 2023 · Hack or exploit · $8.9M
Exactly 2023 · Hack or exploit · $7.5M
Terraport 2023 · Hack or exploit · $4M
Curve Finance MEV Bot 2023 · Hack or exploit · $2M
Cite this page
SwanBluechip, "Arcadia V1 hack, Jul 10, 2023: $455K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/htb86d5a8307/ (data as of 2026-10-31).