- Fine-grained ownership model: Decide which actions require a user signature, an authorization key, or both.
- Distributed authorization: Require signatures from multiple authorization keys running across different servers.
- Multi-signature security: Enforce independent approvals for high-risk or high-value operations.
- Hierarchical approval structures: Nest a key quorum inside another key quorum, such as a “Security Team” quorum nested inside an “Org Admins” quorum.
Nested key quorums
Key quorums can include other key quorums as members (one level deep), enabling hierarchical authorization structures that mirror how organizations actually make decisions. A nested quorum counts as a single member of the parent quorum — once it meets its own authorization threshold, it counts as one approval toward the parent’s threshold. This lets organizations enforce team-level sign-off as part of a broader approval flow. All authorization thresholds — both at the parent and nested level — are enforced within Privy’s TEE infrastructure, so approval requirements cannot be bypassed by any single party. Learn more about how to create key quorums and sign requests with the guides below.Create key quorums
Create key quorums from authorization keys.
Sign requests
Sign requests with a quorum of m-of-n keys.

