# Fuel Sequencer Updates 9 and The Rig security audit

Fuel Sequencer is a Cosmos SDK chain written in Go and part of Fuel Ignition, an Ethereum layer-2 rollup powered by the FuelVM. This audit covered a round of updates to the sequencer together with The Rig.

Codezen audited Fuel Sequencer Updates 9 and The Rig together with Oak Security. Technologies in scope: Golang, Cosmos SDK, Ethereum and Consensus.

- Audit type: Cosmos SDK chain audit
- Technologies: Golang, Cosmos SDK, Ethereum, Consensus
- Ecosystem: Ethereum, Cosmos
- Delivered with: Oak Security
- Report date: 12 June 2025
- Project website: https://fuel.network
- Page: https://www.codezen.tech/audits/fuel-sequencer-updates-9-and-the-rig/

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