Hack history / 2026 / Hack or exploit
Volo Vault
Hack or exploit on Apr 21, 2026 · Private Key Compromised
SOURCES AGREE ON DATE AND LOSS · 4 SOURCES
Lost
$3.5M
dollars at the time
Returned
$3.4M
98% of the loss, as a source states it
Rank
#547
among thefts by dollars lost
What happened
On April 21, 2026, Volo Protocol on Sui was exploited when a high-privilege admin key was compromised, likely via social engineering. The attacker drained three vaults: WBTC (~$2.1M), XAUm (~$0.9M), and USDC (~$0.5M). The team recovered ~$3.44M (90%) of funds after blocking a $500K bridge attempt.
Details
- Date
- Apr 21, 2026
- Kind
- Hack or exploit
- Method
- Private Key Compromised
- How in
- Keys, accounts and infrastructure
- Target
- DeFi protocol
- Chains
- Sui
After the theft
- Recovered or seized
- $3.4M
“The team recovered ~$3.44M (90%) of funds after blocking a $500K bridge attempt.” (DefiLlama) - Frozen
- yes, amount not stated
“Volo stated that it detected the attack and immediately notified the Sui Foundation and ecosystem partners, and has frozen all vaults to prevent further losses.” (SlowMist Hacked) - Recovered or frozen
- $3.4M
“$3.5M taken, $60K after recovery or freezing” (Web3 Is Going Great)
Related incidents
79th Vault 2026 · Hack or exploit · $12.5M
Haedal Vault 2026 · Hack or exploit · $915K
Clober Liquidity Vault 2024 · Hack or exploit · $501K
Step Finance 2026 · Hack or exploit · $40M
Humanity 2026 · Hack or exploit · $32M
Haedal Vault 2026 · Hack or exploit · $915K
Clober Liquidity Vault 2024 · Hack or exploit · $501K
Step Finance 2026 · Hack or exploit · $40M
Humanity 2026 · Hack or exploit · $32M
Cite this page
SwanBluechip, "Volo Vault hack, Apr 21, 2026: $3.5M lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht16c35a9841/ (data as of 2026-10-31).