IT Audit in Brussels, Asse and Zellik: get control over your IT environment

A reliable IT environment is essential for any business today. Computers, servers, Microsoft 365, email, internet, telephony, cloud storage, backups and cybersecurity are directly linked to the daily operations of your business. When one component does not function correctly or is inadequately secured, it can lead to a loss of productivity, data breaches, financial damage or even a complete interruption of operations. A IT audit Brussels, Asse and Zellik bring clarity to this.

Many SMEs, in fact, do not have a complete overview of their IT infrastructure. There are computers that are no longer up-to-date, old user accounts that are still active, Microsoft 365 settings that have never been checked, backups that no one is sure if they work, or firewall rules that were set up years ago and have never been reviewed. GVISION helps SMEs in Brussels, Asse, Zellik and the surrounding area with professional IT audits.

Een IT audit is, in het kort, een onderzoek naar hoe goed de informatietechnologie van een organisatie werkt en hoe het de bedrijfsdoelstellingen ondersteunt. Het doel is om ervoor te zorgen dat systemen veilig, efficiënt en in overeenstemming met de geldende wet- en regelgeving functioneren.

An IT audit is a thorough inspection of your IT environment. The objective is to understand how your IT is organised today, where the risks lie, and what improvements are needed. An audit looks not only at one computer or one server, but at the entire IT landscape: workstations, laptops, servers, network equipment, Wi-Fi, firewalls, Microsoft 365, user privileges, backups, antivirus, cloud applications, telephony, and IT procedures.

For an SME, an IT audit is particularly valuable because the IT environment has often grown gradually. Over the years, new devices are added, employees come and go, applications change, and external suppliers make modifications. An IT audit provides your company with a clear picture of the current situation: what works well, what urgently needs attention, and what steps are recommended.

Why is an IT audit important for SMEs?

Many companies only perform a thorough IT audit when there's already a problem: after a cyber incident, a server crash, a ransomware attack, or a prolonged internet outage. An IT audit is precisely intended to prevent problems. By detecting risks early, your company can take measures before any damage occurs.

The main benefits include greater insight into your entire IT environment, better protection against cyber-attacks, reduced risk of data loss, a clear overview of users and access rights, improved computer and network performance, more accurate use of Microsoft 365, greater certainty about backups, and clear priorities for future IT investments. Therefore, an audit is not a theoretical document, but a practical tool for business leaders.

IT audit Brussels, Asse and Zellik: local support

A local IT partner has a significant advantage. Businesses in Brussels, Asse, Zellik, Groot-Bijgaarden, Dilbeek, Wemmel and Jette need fast, practical and accessible support. GVISION supports SMEs in this region with IT audit, IT support, infogérance, Microsoft 365, cybersecurity, VoIP and modern workplace solutions.

During an IT audit in Brussels, Asse and Zellik, we combine technical analysis with practical recommendations. The aim is not to deliver a complex report that no one uses, but to provide your company with a clear overview of risks and priorities. You will receive a concrete action plan: which problems need urgent resolution, which improvements can be planned for later, and which investments are necessary.

Cybersecurity audit: protect your business from digital risks

Cybersecurity is one of the most important components of an IT audit. Cyber-attacks do not only target large companies. SMEs are also targets because they often have fewer security measures and still possess valuable data.

a cybersecurity audit checks, among other things, whether Multi-factor authentication whether it is active, whether Microsoft 365 is correctly secured, whether old or unused accounts still exist, whether administrator rights are restricted, whether antivirus is working correctly, whether computers and servers are up-to-date, whether firewall rules are logical, and whether external access is well secured. A significant risk is account theft: when an attacker gains access to a Microsoft 365 account, they can read emails, open documents, intercept invoices, or send phishing emails. Therefore, MFA is a basic measure that is always checked during an audit. Anyone who..." NIS2 must comply, finds a solid basis in an audit.

Microsoft 365 audit for SMEs

Microsoft 365 is the centre of their digital operations for many companies. Outlook, Teams, OneDrive, SharePoint, Exchange Online and Microsoft Entra ID are used daily. However, in many SMEs, Microsoft 365 has never been fully controlled or optimised.

A Microsoft 365 audit reviews whether your tenant is set up correctly, securely, and efficiently: user accounts and licenses, administrator rights, multi-factor authentication, Conditional Access, mailbox security, SharePoint and OneDrive permissions, external sharing, Teams structure, old accounts, suspicious mail forwarding rules, and security defaults. Many companies pay for licenses they don't fully utilise; an audit helps to better align licenses with actual needs.

Network audit: Wi-Fi, firewall, switches and internet connection

A stable network is the foundation of a good IT environment. When Wi-Fi is slow, the internet frequently drops, or switches are misconfigured, it has a direct impact on productivity. During a network audit, GVISION checks the firewall and router, switches, Wi-Fi access points, VLANs and network segmentation, internet connection, VPN access, DHCP and DNS, cabling, guest networks, and network security.

Many SMEs have a network that has been expanded over the years without clear documentation. A network audit helps to clarify the structure: which devices are connected, is the guest network separated from the internal network, are there outdated devices, and is the firewall configured correctly?

Back-up audit: are you sure your data is recoverable?

Having a backup is not the same as being certain you can restore. Many companies think their data is safe because a backup was once set up, but when something actually goes wrong, it sometimes turns out that the backup is incomplete, not recent enough, or was never tested.

A backup audit checks which data is backed up, how often, where backups are stored, whether Microsoft 365 data is protected, whether servers and critical applications are covered, whether backups are encrypted, whether recovery tests have been performed, and whether there is protection against ransomware. An audit provides clarity on the question: if something goes wrong today, can we recover?

Hardware, software and IT documentation

During an IT audit, hardware and software are also examined. Many companies use computers, laptops, or servers for longer than planned. A hardware audit provides insight into the age and performance of devices, warranty and maintenance status, server capacity, storage space, and outdated or risky devices. In addition, software is checked: are all applications still needed, are licences correct, and are there old versions causing security risks?

An often underestimated component is documentation. Many companies rely on one person who “knows how everything works.” An IT audit checks whether sufficient documentation exists regarding servers, network equipment, IP addresses, firewall rules, the Microsoft 365 tenant, licenses, admin accounts, back-ups, suppliers, and procedures for incidents. Good documentation is essential for continuity.

Wanneer heeft uw bedrijf een IT-audit nodig?

An IT audit is recommended when your business is growing, when you experience frequent IT problems, when your Microsoft 365 environment has never been checked, when you doubt whether your backups are working, when you have been a victim of phishing, when you want to better secure remote working, when you want to migrate to the cloud, when you are looking for a new IT partner, or when you want to optimise your IT costs. An audit is also interesting before major projects such as a server migration, Microsoft 365 migration, SharePoint implementation, VoIP project, or relocation.

Hoe verloopt een IT audit door GVISION?

GVISION operates with a clear and practical six-step approach. 1. Intake and objective setting: We're discussing why you want to conduct an audit. 2. Inventory: We map users, devices, servers, licenses, and critical systems. 3. Technical inspection: We check settings, security measures, updates, permissions, and backups. 4. Risk Analysis: We determine which points pose the greatest risk. 5. Report with recommendations: You will receive a clear report with findings, priorities, and an actionable plan. 6. Implementation and follow-up: GVISION can assist with implementing the recommendations.

IT audit as the first step towards outsourcing

For many SMEs, an IT audit is the start of better collaboration with an IT partner. Therefore, an IT audit often forms the basis for Managed IT services. With managed IT services, GVISION proactively manages your IT environment: we don't wait for something to go wrong, but monitor systems, manage users, check security and support staff. An audit shows where your company stands today; managed IT services ensure your IT environment stays under control thereafter.

Conclusion

An IT audit in Brussels, Asse, or Zellik is a valuable step for any SME that wants more control over its IT environment. It provides insight into security, Microsoft 365, backups, networks, hardware, software, permissions, and documentation. Without an audit, many risks remain hidden until an incident occurs.

Do you want to know how secure, stable, and efficient your IT environment is today? Contact GVISION for an IT audit in Brussels, Asse, Zellik or the surrounding area and take the first step towards better IT management.

FAQ — IT Audit Brussels, Asse and Zellik

Een IT audit is, in het kort, een onderzoek naar hoe goed de informatietechnologie van een organisatie werkt en hoe het de bedrijfsdoelstellingen ondersteunt. Het doel is om ervoor te zorgen dat systemen veilig, efficiënt en in overeenstemming met de geldende wet- en regelgeving functioneren.

An IT audit is a thorough check of your IT environment. This involves analysing computers, servers, the network, Microsoft 365, backups, security, user rights, and documentation.

Why does an SME need an IT audit?

An SME often doesn't have a complete overview of all IT risks. An audit helps to detect problems early, improve security, check backups and plan IT investments more effectively.

How long does an IT audit take?

This depends on the size and complexity of the environment. A small SME can be analysed more quickly than an organisation with multiple sites, servers and cloud applications.

Kan een IT-audit op afstand plaatsvinden?

A large part can be done remotely, especially for Microsoft 365, user management and security settings. For network, Wi-Fi or hardware, an on-site intervention in Brussels, Asse or Zellik may be useful.

Will we receive a report after the audit?

Yes. GVISION provides a clear report with findings, risks, priorities, and recommendations – an actionable plan, not just a technical list.

Yes, an IT audit is also useful if everything seems to be working well.

Yes. Many IT risks are not immediately visible. Backups can fail without anyone noticing, and security settings can become outdated. An audit prevents surprises.