Three independent layers. No single point of failure.
Every transaction must clear three sequential, independent checks before it can settle. Each layer enforces your policies on its own, so compromising one changes nothing.
Dedicated signing client
Transactions are validated locally before they can be signed. SDKs throw before generating signable data, and the mobile app blocks approval of non-compliant transactions.
Off-chain Guardian service
After signers approve, the independent Guardian re-validates on secure servers, confirming policy compliance and that every required approval is present.
Onchain smart contracts
Audited contracts re-run policy validation on-chain and revert anything that violates a policy or lacks approvals, even during a complete infrastructure compromise.
Cloud-compromise immunity
To move funds, an attacker would need to simultaneously defeat your signers, your servers, and the blockchain itself.
Move onchain with confidence.
See how Den secures digital assets for enterprises and institutions, with security that holds even when everything else fails.