Security, explained from behind the gate.
How ShareZT keeps links and secrets locked down — the encryption, the access layers, and the honest trade-offs, written plainly by the people who build it.
How to Add and Protect a Link in ShareZT
Step-by-step: create a link in ShareZT and protect it with zero-knowledge encryption, a password, expiry and burn, and IP and geo rules — then share and manage it.
How the Secret Key Works — and How to Use It
How ShareZT's zero-knowledge secret key works — generated in your browser, carried in the link, never sent to our servers — with a step-by-step walkthrough of creating, sharing, and opening a secret.
Zero-Knowledge by Default: How ShareZT Protects Your Secrets
How ShareZT keeps secrets private with zero-knowledge encryption — encrypted in your browser with AES-256-GCM under a key our servers never receive, behind a fail-closed server-side gate.
Defense in Depth: The Security Layers Behind a ShareZT Link
A layer-by-layer walkthrough of how a ShareZT link is protected — flood control, lifecycle, IP and geo rules, a passphrase, and a zero-knowledge encrypted core, all fail-closed.
Country Codes for Geo-Fencing: The Full ISO 3166-1 List
The complete ISO 3166-1 country code reference — alpha-2, alpha-3, and numeric — searchable. These are the two-letter codes ShareZT uses to geo-fence links.
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