Hack history / 2023 / Hack or exploit
NST Simple Swap
Hack or exploit on Jun 2, 2023 · Unverified contract, wrong approval
ATTACK TX CONFIRMED ON CHAINONE SOURCE · 1 SOURCE
Lost
$40K
dollars at the time
Returned
none listed
as the sources state it
Rank
#1,978
among thefts by dollars lost
What happened
No description from DefiLlama or SlowMist; see the sources below.
Details
- Date
- Jun 2, 2023
- Kind
- Hack or exploit
- Method
- Unverified contract, wrong approval
- How in
- Smart contract bug
- Target
- not stated
- Chains
- Polygon
Reported by
- DeFiHackLabs exploit reproduction only
Related incidents
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Trader loses almost $50 million in Aave swap gone wrong 2026 · Costly mistake or other · $50M
1inch Swap 2025 · Hack or exploit · $5M
1inch Swap 2024 · Hack or exploit · $723K
WOOFi Swap 2024 · Hack or exploit · $8.8M
Trader loses almost $50 million in Aave swap gone wrong 2026 · Costly mistake or other · $50M
1inch Swap 2025 · Hack or exploit · $5M
1inch Swap 2024 · Hack or exploit · $723K
WOOFi Swap 2024 · Hack or exploit · $8.8M
Cite this page
SwanBluechip, "NST Simple Swap hack, Jun 2, 2023: $40K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht13eda63e54/ (data as of 2026-10-31).