Security Council
The Arbitrum Security Council consists of 12 members split into two cohorts. Elections are now held every 12 months and replace one cohort, so a member serves a 2-year term. Elections through March 2026 ran every 6 months on one-year terms; Security Council Election Process Improvements, executed by the DAO, moved them to a yearly cadence each March, lowered the nominee qualification threshold, and let members and candidates rotate their own signing keys.
First Cohort
Term ends ~May 20, 2027- Immunefi(Immunefi)
- zachxbt(ZachXBT)
- gzeon(Smart Contract @ Offchain Labs)
- Emiliano Bonassi(Head of Product @Conduit)
- Griff Green(Founder: Giveth, Dappnode, etc)
- Cyfrin | Arbitrum Security Council(Cyfrin | CEO)
Second Cohort
Term ends ~May 20, 2028- Pablo Sabbatella (OPSEK)(Founder @ OPSEK)
- bartek.eth(Founder @ L2BEAT)
- Michael Lewellen(Solutions Eng Head @ Turnkey)
- yoav.eth(Security @ Ethereum)
- DZack23(Independent (Ex Offchain Labs))
- Tigran (Certora)(Head of Security Labs)
Key rotation
- Sitting members can rotate their own signing key at any point in their term. The rotation runs the full governance timelock (about 18 days) before the new signer is registered in the Security Council multisigs on Arbitrum One, Ethereum and Arbitrum Nova, and the Security Council can veto a rotation that fails compliance checks.
- Candidates in an election can rotate the key they registered with during the compliance phase, up to 3 days before that phase ends, which leaves the Arbitrum Foundation time to veto an improper rotation.
- A member or candidate requesting a rotation is expected to announce it on the forum once it is submitted on chain.