HAMAWhy secure communication with employees matters
Every organization moves hundreds of messages a day: salaries, contracts, client data, internal decisions. If that flow is unprotected, a single leak can cause serious damage. That is why secure communication with employees is not just convenience — it is the foundation of an organization's information security.
Many people still run work conversations in personal messengers. It feels convenient, but the organization has no control over such data: it doesn't know where it is stored, who can read it, or what happens when an employee leaves.
Official channel vs personal messengers
The basic principle is simple: work information should live only in an official channel under the organization's control. The weak points of personal messengers:
- Data is stored on external (often foreign) servers.
- The organization can't govern who has access to what.
- When an employee leaves, chats and files stay on their phone.
- A wide opening for fake accounts and social engineering.
On an official corporate platform, identity, access and storage all stay in the organization's hands.
Three pillars: encryption, files, access control
1. End-to-end (E2E) encryption
A message is encrypted on the sender's device and decrypted only on the recipient's device. The server never sees plaintext — so neither interception nor a server breach exposes the conversation.
2. Safe file sharing
Documents should travel over an encrypted channel, access to each file should be explicitly defined, and the storage location should be controlled. Dropping work files into personal clouds is the most common cause of leaks.
3. Access management (onboarding/offboarding)
A new employee should get access only to the channels their job requires — the principle of least privilege. And when an employee leaves, access must be revoked immediately.
Most leaks come not from new vulnerabilities but from old, un-revoked access. Offboarding matters just as much as onboarding.
Practical steps: how to protect communication
- Move all work conversations onto one official platform.
- Introduce a policy banning work data in personal messengers.
- Require E2E encryption and TLS 1.3 transport.
- Build a role matrix: who can access which channels and files.
- Grant and revoke access through a formal procedure on hire and departure.
- Know exactly where your data is stored.
How HAMA handles this
HAMA is a unified secure platform for organizations in Uzbekistan (business and government). All three pillars of secure communication with employees are implemented as follows:
- E2E encryption: the Signal protocol (X3DH + Double Ratchet), AES-256-GCM for groups, transport only over TLS 1.3, the local database encrypted with SQLCipher, and keys kept in the OS's protected store.
- File sharing: documents are sent over an encrypted channel, with access governed by RBAC.
- RBAC and access control: the role system manages onboarding and offboarding — a departed employee's session and access are revoked.
- Data sovereignty: the server runs in Uzbekistan or in the organization's own infrastructure (on-premise), and data stays inside the country. Preparation is under way for O'z DSt ISO/IEC 27001:2023 and PP-167 requirements.
Messaging, video conferencing, HR/org structure, monitoring, helpdesk and more are combined in a single desktop client (Windows, MSI).