Hack history / 2023 / Hack or exploit
Contract_0x7657
Hack or exploit on Jun 19, 2023 · Business Logic
ATTACK TX CONFIRMED ON CHAINONE SOURCE · 1 SOURCE
Lost
$20K
dollars at the time
Returned
none listed
as the sources state it
Rank
#2,133
among thefts by dollars lost
What happened
No description from DefiLlama or SlowMist; see the sources below.
Details
- Date
- Jun 19, 2023
- Kind
- Hack or exploit
- Method
- Business Logic
- How in
- Smart contract bug
- Target
- not stated
- Chains
- Ethereum
Reported by
- DeFiHackLabs exploit reproduction only
Related incidents
Unknown Stake Contract 2026 · Hack or exploit · $133K
Hegic(old contract) 2025 · Hack or exploit · $80K
CryptoPunk sells for a fraction of its likely market price due to zombie smart contract 2024 · Costly mistake or other · $1.4M
OMPx Contract 2024 · Hack or exploit · $12K
Hacker pulls $1 million from defi project, then destroys contract without withdrawing the funds 2022 · Hack or exploit · $1M
Hegic(old contract) 2025 · Hack or exploit · $80K
CryptoPunk sells for a fraction of its likely market price due to zombie smart contract 2024 · Costly mistake or other · $1.4M
OMPx Contract 2024 · Hack or exploit · $12K
Hacker pulls $1 million from defi project, then destroys contract without withdrawing the funds 2022 · Hack or exploit · $1M
Cite this page
SwanBluechip, "Contract_0x7657 hack, Jun 19, 2023: $20K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht32cd6a0a4b/ (data as of 2026-10-31).