The Problem
Traditional cloud sharing and basic encryption tools often leave users with limited control once files are delivered. Existing solutions can be hard to use, lack granular permission flows, and make access revocation difficult.
Our Products

ABSI was created to solve a major challenge for teams and individuals: sharing files securely while retaining full control over who can access content after it is sent.
Traditional cloud sharing and basic encryption tools often leave users with limited control once files are delivered. Existing solutions can be hard to use, lack granular permission flows, and make access revocation difficult.
Shelter Technology built ABSI as a mobile-first social encryption experience. The platform combines secure file protection with streamlined sharing workflows, so users can encrypt, share, and revoke access without technical complexity.
Every shared file is encrypted end-to-end to protect sensitive business and personal data during transfer and storage.
Users can share encrypted content with specific profiles and contacts, avoiding broad or uncontrolled file distribution.
Access can be revoked after sharing, allowing senders to immediately remove recipient visibility when permissions change.
Built-in key handling supports safe distribution, retrieval, and revocation workflows without compromising usability.
The interface was designed with a familiar messaging-style experience, allowing users to manage contacts and send encrypted files in a clean, intuitive flow. Encryption and decryption operate in the background to keep usage friction low.
We performed extensive unit, integration, and UI testing across encryption, key lifecycle, file sharing, notifications, and revocation flows. Security checks and performance testing ensured reliability under production usage.
ABSI delivered an easy-to-use secure sharing product with stronger user control than conventional tools. The product established a practical model for privacy-first collaboration between trusted contacts.
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