In many companies, employee accounts accumulate on their own over time: one person uses a personal Gmail, another inherited an address from a former colleague, passwords live in an Excel file, and when someone leaves, nobody remembers to close their access. One day that chaos turns into a problem — a lost email, a hijacked account, or a former employee whose login still works. Microsoft 365 and Active Directory are the opposite of that chaos: one corporate account per employee, central email, shared documents and a single system where every login can be managed. This article explains how corporate identity is built and why it is the foundation of security.
Why Scattered Accounts Are a Real Risk
Free email addresses and unmanaged accounts look cheap and convenient at first. In reality they load hidden cost and risk onto the company — because nobody fully knows who has access to what.
The typical outcomes: a departed employee's mail and files are still reachable; important correspondence sits in a personal mailbox the company cannot claim; and when one password is stolen, the attacker walks straight in because there is no extra layer of protection. When an employee's personal account is compromised, the problem is not only theirs — the company's customer data, contracts and internal correspondence are all exposed.
The Foundation of Corporate Identity: Domain and Active Directory
It all starts with a single source of truth — a central directory that holds one account per employee. On the local network this is Active Directory; in the cloud, its continuation is Microsoft Entra ID.
Set up this way, an employee signs in once in the morning with their corporate account, and that account becomes their entire digital identity at the company: email, files, Teams, printing, internal systems. The IT team manages it all from one place — creating an account for a new hire in minutes, and closing every access with a single action when someone leaves. No "forgotten" door is left open.
From ONYX Experience: MobilGroup
This is not theory. ONYX built a full domain for MobilGroup, covering 5 branches and 120 users: Active Directory, a central mail system, a server room and server, and a site-to-site VPN between branches. As a result, every employee — regardless of branch — works with the same account structure, the same policies and the same central email. When someone moves from one branch to another, there is no need to rebuild their account.
Microsoft 365: Email, Teams and Shared Documents in One Place
Once the account structure is in place, productivity tools fall into their natural position. Microsoft 365 brings corporate email, communication and document work together on a single, managed platform.
Corporate Email (Exchange)
Every employee gets a professional address on the company's own domain — name@company.az. The mailbox belongs to the company, not to a personal account: when staff change, the correspondence and contacts stay with the business.
Communication with Teams
Chat, calls and video meetings are consolidated into one tool. Project discussions happen in a managed corporate environment, not scattered across personal messengers.
OneDrive and SharePoint
Files live in a central, backed-up location rather than on a personal laptop. Who can access a document is governed precisely, and the team works on the same, latest version of each file.
Unified Licensing and Management
All of this sits under one license per employee. The IT team manages users, policies and security from a single console — not across disconnected systems.
Single Sign-On (SSO) and Multi-Factor Authentication (MFA)
The greatest benefit of central identity shows up in security. Two concepts are decisive here: single sign-on and multi-factor authentication.
Single sign-on lets an employee reach every connected system with one corporate account — without memorizing a separate password for each. That is both convenience and security: the fewer passwords there are, the lower the risk of weak and reused ones.
Multi-factor authentication (MFA) adds a second layer of confirmation on top of the password — usually an approval from an app on the phone. With it in place, even a stolen password is not enough: the attacker cannot get in without the second factor. Today a large share of account takeovers happen through stolen passwords; MFA closes exactly that channel, which is why it is considered the essential protection for corporate accounts.
From ONYX Experience: Aselsan Azerbaijan
For Aselsan Azerbaijan, ONYX built Active Directory with file and mail servers, a Checkpoint firewall, and a data-center room. The logic is clear: central identity puts accounts in order, while the firewall protects the perimeter — together they form one complete security layer. Identity and network security should not be planned separately, but as a single project.
Where to Start
Moving to corporate identity does not happen overnight, but it is not complicated either. The right sequence matters.
- Inventory — who currently has which accounts and access, and where each mailbox is held.
- Domain and directory — Active Directory / Entra ID is set up, with one account created per employee.
- Microsoft 365 rollout — email, Teams and files move onto the corporate platform.
- Policy and MFA — password rules, single sign-on and multi-factor authentication are applied.
ONYX delivers all of these stages — from audit to full integration — as a single project, taking on the entire setup including Microsoft licensing.
Ready to put your company's accounts and email in order?
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