Hack history / 2023 / Hack or exploit
Sentiment
Hack or exploit on Apr 4, 2023 · Reentrancy
ATTACK TX CONFIRMED ON CHAINSOURCES AGREE ON DATE AND LOSS · 4 SOURCES
Lost
$1M
dollars at the time
Returned
$905K
90% of the loss, as a source states it
Rank
#935
among thefts by dollars lost
What happened
On April 4, 2023, Sentiment on Arbitrum lost ~$1M due to reentrancy in integrated Balancer; attacker used flashloan price manipulation to drain funds. Sentiment recovered 90% ($900K+) within days through negotiation.
Details
- Date
- Apr 4, 2023
- Kind
- Hack or exploit
- Method
- Reentrancy
- How in
- Smart contract bug
- Target
- DeFi protocol
- Chains
- Arbitrum, Ethereum
After the theft
- Recovered or seized
- $900K
“Sentiment recovered 90% ($900K+) within days through negotiation.” (DefiLlama) - Recovered or frozen
- $905K
“$1.0M taken, $95K after recovery or freezing” (Web3 Is Going Great)
Related incidents
NFT Trader 2023 · Hack or exploit · $3M
Orion Pools 2023 · Hack or exploit · $3M
Arena SocialFi 2023 · Hack or exploit · $3M
GoodDollar 2023 · Hack or exploit · $2M
Midas Capital 2023 · Hack or exploit · $650K
Orion Pools 2023 · Hack or exploit · $3M
Arena SocialFi 2023 · Hack or exploit · $3M
GoodDollar 2023 · Hack or exploit · $2M
Midas Capital 2023 · Hack or exploit · $650K
Cite this page
SwanBluechip, "Sentiment hack, Apr 4, 2023: $1M lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht3503871c6c/ (data as of 2026-10-31).