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Threat Model for Private Sharing

Define risks, choose the right mode, and set safe defaults for your use case.

A threat model clarifies which risks matter and which controls are enough.

The right choice depends on the data, the audience, and the sharing channel.

Define the asset

Identify what you are sharing and how sensitive it is.

Credentials, personal data, and internal documents all deserve stronger controls.

Understand adversaries

Common risks include link forwarding, compromised devices, or exposure in storage logs.

Clarify whether you are protecting against the server itself or only accidental leaks.

Map controls to risks

Use secure mode when you need protection from server-side exposure.

Use quick mode when speed matters and server-side encryption is acceptable.

Communicate the plan

Tell recipients about expiration, burn-after-read, and any prefetch risks.

Make the rules explicit so the share is both secure and predictable.

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