PRIVACY BY DESIGN
IN CRYPTOGRAPHIC
SELF-CUSTODY
In self-custody, privacy is not an optional feature. It is a structural property of the system.
Most solutions on the market focus exclusively on protecting private keys, while overlooking the most common and dangerous risk: the leakage and correlation of financial metadata.
Cuvex is designed from the ground up under the principle of Privacy by Design, architecturally eliminating any dependency that could expose your activity, balance, or identity.
THE REAL RISK: METADATA
Even when private keys are never compromised, systems can still reveal:
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Public addresses and XPUBs
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Aggregated balances
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Transaction history
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Usage frequency
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IP addresses
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Temporal patterns
This data enables:
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Correlation between identity and assets
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Targeted attacks
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Extortion
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Financial surveillance
In many cases, metadata is more valuable than keys themselves.
HOW METADATA LEAKS TODAY
Most traditional hardware wallets rely on:
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Desktop or mobile software suites
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Proprietary or third-party servers
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Automatic balance synchronization
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Continuous address monitoring
This model creates:
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Single points of correlation
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Unavoidable dependencies
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External attack surfaces
This is not an isolated flaw.
It is a structural design problem.
PRIVACY BY DESIGN VS PRIVACY BY POLICY
PRIVACY BY DESIGN
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Backendless architecture
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Technical impossibility of data collection
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Elimination of the problem at its source
* Cuvex adopts this approach.
PRIVACY BY POLICY
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Legal assurances
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Privacy policies
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Trust in third parties
HOW CUVEX ELIMINATES
METADATA LEAKAGE
Backendless
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No servers to query
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No balance auditing
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No automatic synchronization
Arquitecture
Watch -Only
Transaction construction occurs without private keys.
The user can operate with:
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Their own node
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Consciously selected endpoints
Strict Role Separation
• The app observes
• The device signs
• The secret never leaves the offline domain
No Accounts. No Identity.
• No login
• No profiles
• No tracking
CONCEPTUAL COMPARISON
WHY THIS MATTERS OVER THE LONG TERM
Self-custody is not just about protecting funds today.
It is about preventing:
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your assets from being profiled
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your activity from being traceable
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your financial decisions from being observable
Cuvex does not promise privacy. It enforces it through architecture.
THREAT MODEL RELATIONSHIP
Privacy by Design is not an isolated feature.
It is directly tied to:
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Cuvex’s threat model
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The Double AirGap PSBT
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Sovereign signing
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The elimination of external dependencies
Privacy is a consequence of design, not a configurable option.