Multisig signers co-hosted
A governance & admin factor in the v1.7.0 rubric. Measured per protocol on a s cadence.
Methodology how we score #
**What this measures** This factor assesses whether the signers of a protocol's governance multisig are co-hosted — sharing the same autonomous system number, data center, cloud provider, or custodian. The assessment combines on-chain address analysis (network fingerprints from signing transactions) with OSINT on the addresses' activity patterns. Co-hosting means that a single infrastructure compromise could simultaneously expose multiple signer keys, collapsing the effective threshold.
**Why it matters** The security guarantee of a 3-of-5 multisig depends entirely on the independence of the five signing parties. If three of those signers operate on the same cloud infrastructure or with the same custodian, a single breach of that provider collapses the 3-of-5 to a practical 0-of-2 recovery problem. The evidence base includes cases where hardware co-location with a compromised vendor reduced an apparently robust multisig to a single-point-of-failure. This factor is particularly relevant for protocols that disclose their signer list publicly — the co-hosting analysis can then be performed at the address level using on-chain transaction metadata.
**Green / Yellow / Red** Green is assigned when signers are demonstrably distributed across different cloud providers or custody solutions and no co-hosting signals appear in on-chain data. Yellow covers cases where partial co-hosting is suspected but unconfirmed, or where signer distribution is not publicly verifiable. Red is assigned when on-chain or OSINT evidence confirms that a quorum-forming set of signers share the same infrastructure or custodian.
**Common gray cases** This factor is grayed when the signer list is not public and on-chain inference is inconclusive — a common state for protocols that do not publish their multisig composition.
**Notable historical examples** No cross-hacked incidents currently linked in database for this factor.
Measurement what to look for #
Determine whether multisig signers share ASN / data-center / custodian according to on-chain and OSINT inference.