Armada Daily Repo Summary Archive
Custody / SOC 2

Taiko Ethereum L2 halts block production after bridge exploit tied to proof validation flaw

The Block · Jun 22, 2026 1:02 AM EDT

Taiko, an Ethereum Layer 2 network, halted block production after an exploit was identified in its bridge infrastructure. Onchain security firm Blockaid attributed the root cause to a flaw in the source-signal proof validation mechanism of the Taiko bridge contract, allowing unauthorized withdrawals. The team urged users to withdraw funds from the network while the halt remained in effect.

For Armada's crypto desk, Ethereum is a primary collateral asset and Fireblocks is the custody partner. Any ETH collateral that has been bridged to or from Taiko is at risk of loss or freezing during the halt. Armada must confirm that no counterparty-submitted ETH collateral transits Taiko rails and that Fireblocks routing configurations explicitly exclude compromised L2 bridges from settlement paths.

Suggested action Confirm Fireblocks MSA and internal routing policy exclude Taiko bridge; verify no counterparty collateral is bridged via Taiko.
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