Private by architecture
Messages and supported files are encrypted in the browser before authenticated storage on the private server.
← Selected workCase study 02
Financial services / Private infrastructure
Confidential work stayed inside the company.
23 / 23 checks passed
6 / 6 services healthyVerified boundary
A communication system the company could control.
The system was built around a defined trust boundary: approved identities, encrypted content, private infrastructure and immediate management controls.
01Approved deviceOne employee session
02Browser encryptionContent protected first
03Private infrastructureAuthenticated relay and storage
04Encrypted roomApproved participants only
23 / 23Public route checks passed
0 knownProduction dependency vulnerabilities
6 / 6Production services healthy
Production safe assessment performed by Hifzara on 28 August 2026. This is engineering evidence, not an independent compliance certification.
01 / Problem
Confidential work had outgrown ordinary chat.
The firm needed internal text, documents, voice notes and calls without public sign up, open room creation or uncontrolled employee identities. Privacy had to be part of the infrastructure, not a policy placed beside it.
02 / System
Encryption, identity and operations in one private path.
A custom mobile first client runs over a self hosted communication stack, with management controls designed into access and recovery.
01Sign in
02Verify
03Encrypt
04Relay
05Store
06Revoke
Identity stays bounded
Managers create accounts and rooms. Public registration, guest access and employee room creation remain disabled.
Control remains operational
Managers can revoke access, reset credentials, enforce one employee device and permanently remove managed rooms.
03 / Protection model
Privacy was treated as a system boundary.
The project joined communication, hosting and security controls into one operating environment instead of depending on employee behaviour alone.
Encrypted content
Text, supported documents, images and voice notes remain encrypted across normal storage and relay paths.
Restricted surface
Public registration, federation, directories and administrative endpoints are blocked from the public interface.
Controlled sessions
A new approved employee login revokes the previous device session at the server layer.
Honest limits
Endpoint capture and a compromised hosting provider remain inside the threat model. Browser controls are deterrents, not absolute guarantees.
04 / Result
Confidential communication became company infrastructure.
The firm gained a production communication environment with private hosting, encrypted rooms and clear management authority over access.
Protect the work