Hack history / 2026 / Hack or exploit
Swan Treasury
Hack or exploit on Jul 30, 2026 · Private Key Compromised
SOURCES AGREE ON DATE AND LOSS · 2 SOURCES
Lost
$625K
dollars at the time
Returned
none listed
as the sources state it
Rank
#1,077
among thefts by dollars lost
What happened
On July 30, 2026 an attacker used Swan Treasury's leaked off-chain signer key to generate valid signatures with the discount parameter set to 1, buying ~687,000 STY on BNB Chain at roughly 1/100 of intended price using a ~19,700 USDT PancakeSwap flash loan, then dumping the tokens for a ~$625K protocol loss.
Details
- Date
- Jul 30, 2026
- Kind
- Hack or exploit
- Method
- Private Key Compromised
- How in
- Keys, accounts and infrastructure
- Target
- DeFi protocol
- Chains
- BNB Chain
Reported by
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Step Finance 2026 · Hack or exploit · $40M
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Yearn Finance accidentally swaps its entire Ip-yCRVv2 treasury, asks nicely for the money back 2023 · Hack or exploit · $1.5M
CEO of Ragnarok metaverse game admits to treasury mismanagement, including nearly $2 million in trading losses and exorbitant salaries 2022 · Fraud · $1.8M
Step Finance 2026 · Hack or exploit · $40M
Humanity 2026 · Hack or exploit · $32M
Cite this page
SwanBluechip, "Swan Treasury hack, Jul 30, 2026: $625K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht87fbe5231f/ (data as of 2026-10-31).