Unizen
Unizen is a trade and cross-chain aggregator whose Unizen Interoperability Protocol routes through third-party interoperability providers. It is included because a March 2024 external-call flaw exposed approved user assets, followed by a bounty and law-enforcement response, reimbursement commencement, partial recovery, contract changes, audits, and continuing operation.
Bridge facts
- Canonical name
- Unizen
- Type
- Bridge Aggregator
- Status
- Active
- Confidence
- High
- Primary chains
- Ethereum, BNB Chain, Polygon, Avalanche, Arbitrum, Optimism, Unknown
- Primary assets
- ETH, USDT, USDC, DAI, Unknown
- Operator
- Unizen team
- Ecosystem
- Unizen
- Launch date
- Unknown
- End date
- Unknown
- Terminal reason
- Not applicable / unknown
- Last reviewed
- 2026-07-28
- Last verified
- 2026-07-28
Incident cases
Unizen 2024 external-call approval exploit2024-03-08
An unsafe external-call path in an Ethereum Unizen trade-aggregation contract exposed approved user assets. Security reports estimated approximately USD 2.1–2.18 million stolen, followed by a bounty and law-enforcement response, reimbursement commencement, partial recovery, contract updates, and resumed active operation.
Evidence records
- Unizen reimbursement announcementUnizen · Tier 1 · 2024-03-11
- PeckShield Unizen approval-issue alertPeckShield · Tier 1 · 2024-03-08
- Unizen CTO incident-response updateMartin Granström / Unizen · Tier 1 · 2024-03-10
- Explained: The Unizen Hack, March 2024Halborn · Tier 1 · 2024-03
- SlowMist Monthly Security Report — March 2024SlowMist · Tier 1 · 2024-04-01
- Unizen Pledges Reimbursements After USD 2.1M LossCryptonews · Tier 2 · 2024-03-11
- Unizen documentationUnizen · Tier 1 · 2026
- Unizen Interoperability ProtocolUnizen · Tier 1 · 2026
- Unizen Security AuditsUnizen · Tier 1 · 2026
- Unizen hacker transfers USD 2.1M stolen funds to Tornado CashCointelegraph / TradingView · Tier 2 · 2024-08-07
Official URL status
Official URL recorded as live_verified: https://unizen.io/