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zkLink Nova bridge exploited for about $786K via forged batch root

An attacker drained roughly $779K–$786K from the zkLink Nova bridge's Ethereum escrow in one transaction. If you use this bridge, don't send new funds through it until zkLink gives an official update.

October 30, 2026 · 2 min read

Affected: see below

What happened

Multiple news outlets report that the zkLink Nova bridge was exploited and its Ethereum escrow was drained in a single transaction. Reports say the attacker used a forged batch root, and that ETH and other tokens were taken. Reported loss figures differ slightly, from about $779,000 to $786,000. SlowMist is cited as saying zkLink reported the loss. The sources do not say how the forged root was made possible, whether the attacker has been identified, or whether any funds will be recovered.

Who is affected

Anyone with funds held in or moving through the zkLink Nova bridge between Ethereum and zkLink Nova may be affected. The sources do not say how many users lost funds or whether individual balances can be recovered. People who do not use this bridge are not reported to be affected.

What to do now

  • If you use zkLink Nova, avoid bridging or depositing funds until zkLink confirms the issue is fixed.
  • Check the official zkLink social accounts and announcements by opening them yourself, not through links in messages.
  • Review your own bridge activity and balances in your wallet or app.
  • Revoke token approvals you no longer need for zkLink-related contracts using a trusted approvals tool.
  • Watch for fake 'compensation' or 'recovery' messages pretending to be zkLink, and never share your seed phrase.
  • Do not connect your wallet to any site that reached you through an unsolicited message or ad.

Our alerts never ask you to click a link, log in, "verify" a wallet or move funds. Expect scammers to copy this news: if a message about it asks for any of that, it's a scam.

Sources

Written by AI Security Watch from the sources above and published automatically. Education only, not financial advice.