Cysic suspends cross-chain bridge after attacker mints 10 million CYS
Image: BitcoinistCysic suspended its cross-chain bridge after an attacker created 10 million unauthorized CYS tokens on BNB Chain. The attacker sold about 7.2 million CYS and received 306.6 ETH, valued at roughly $727,000 at the time. Cysic blocked an address, but the intervention came after a substantial portion of the unauthorized issuance had already traded. The bridge remains closed during investigation.
Key points
- Cysic suspended its cross-chain bridge after an attacker created 10 million unauthorized CYS tokens.
- Reports link the breach to faulty authentication or verification of bridge messages.
- Cysic blocked an address, but much of the unauthorized issuance had already been traded.
Why it matters
The exploit shows how a bridge verification failure can create unauthorized tokens and move value across chains before a project responds. It also leaves CYS holders and liquidity providers facing uncertainty over valid balances and losses.
What's unclear
The complete transaction trail and final loss amount remain unverified.
Cysic has not set a reopening date for the suspended bridge.
Price context · ETH
At publication
$2,423.12
Now
$2,421.10
Change since
−0.08%
7 days · dashed line = publication
Sources · 2 publishers
Bitcoinist
Tier 2
Cysic Bridge Exploit Creates 10 Million Tokens Before $727,000 Moves To Ethereum
Coverage timeline
- First reported by Blockonomi
- Also reported by Bitcoinist
- CryptoVideos brief published
How this page is checked. AI drafted this brief from selected independent reports. Automated checks compare numbers, source coverage and topic terms, but may miss errors. Publication and evidence refreshes run automatically. Read the linked reports for context. Report an error
ONDO
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NEAR
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NEXO
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STRK
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