Why VDI secures remote work
Hybrid working has taken lasting hold in organisations. But this flexibility has a downside: multiplying the devices that access the information system from outside means multiplying the potential entry points for an attack. The question is no longer whether to secure remote access, but how to do it without degrading the employee experience.
What the 2026 figures confirm about the risk
Remote work remains widespread across Europe, and the risk associated with poorly secured remote access is now well documented by industry reports. France, where national statistics and the ANSSI track the subject closely, offers a clear picture:
People in France who worked remotely at least once over 12 months: 63.6%.
Employees in small and medium-sized businesses working remotely at least once a month: 18%.
Average hybrid pattern: around 1.9 days a week working remotely.
Share of small, very small and mid-sized businesses among ransomware victims (ANSSI 2025): 37%.
The warning sign confirmed by the ANSSI's 2025 and 2026 reports: in a significant share of major incidents, the initial entry point is a remote device or a poorly secured VPN access. And small organisations are far from spared, since they account for 37% of the ransomware victims recorded by the ANSSI in 2025: securing remote access is no longer a secondary matter.
VDI (Virtual Desktop Infrastructure) provides a structural answer to this problem. Rather than letting data scatter across personal devices that are hard to control, it centralises working desktops in your data centre or your cloud. The employee only handles a remote display: nothing sensitive actually resides on their machine.
Still hesitating between VPN, VDI and Zero Trust Network Access? Our detailed comparison, VPN, VDI or ZTNA: which remote access to choose, weighs the costs and benefits of each approach. This article focuses on deploying VDI itself.
The practical benefits of VDI
Centralised data: nothing is stored on the employee's physical device. A lost or stolen computer compromises no company data.
A consistent environment: users find a working environment similar to the office, at home or on the move, depending on the devices and connection available.
Centralised updates: a single master image to maintain for all users, instead of a mixed fleet of devices to update one by one.
Multi-device access: PC, Mac, tablet or thin client all work, which opens the way to cheaper, simpler-to-manage endpoints.
Immediate revocation: an employee's departure is handled in a few clicks, without recovering or wiping a physical device.
VDI and the GDPR: an often underestimated compliance benefit
Beyond security, VDI mechanically simplifies some GDPR obligations. Since the data never physically resides on the employee's device, the risk of a personal data leak linked to lost or stolen hardware all but disappears: there is nothing to extract from a device that never stored the data locally. This point deserves to be documented in your records of processing and can be a useful argument with a customer or partner who asks about your security guarantees for the data they entrust to you.
Making a VDI rollout succeed
VDI is powerful, but it needs preparing. A project run too quickly leads to users frustrated by latency and an undersized infrastructure. A few steps structure a successful rollout:
Understand usage: not all employees have the same needs. An office workstation and a graphic design workstation are not sized the same way.
Size the infrastructure: processor, memory, fast storage and bandwidth must be calibrated on real usage, with headroom for peaks.
Build the master images: standardise environments while allowing the customisation each business profile needs.
Secure access: multi-factor authentication, encrypted traffic and strict access policies remain essential, even with VDI. It is this combination of encryption and strong authentication that most reduces the risk of intrusion: properly configured remote access is in a different league from a device left with direct access.
Test before generalising: a pilot with a small group lets you fine-tune comfort of use before a large-scale rollout.
Perceived performance depends heavily on the quality of the network connection and on the endpoints used: a prior audit checks that your devices and bandwidth are compatible before you generalise.
Choosing the right solution for your context
Citrix, Parallels RAS and open-source platforms such as Proxmox each offer different advantages depending on company size, budget and in-house expertise. The right choice depends on your context: there is no universal solution, only a solution suited to your constraints. The underlying virtualisation often relies on a well-designed server infrastructure. Citrix remains relevant for large organisations, but Parallels RAS or Proxmox cover the vast majority of small business needs with simpler administration.
VDI is not just for remote work
VDI is instinctively associated with remote access, but its value goes beyond remote work alone. Because it centralises working environments, it simplifies the management of a mixed or dispersed estate, even when devices never leave the premises. Shared workstations, in a workshop, at reception or in a shop, benefit from identical virtual desktops that are easy to reset, without individual maintenance. The real question is therefore not only how many remote workers you have, but how sensitive the data handled is and how complex your estate is to administer. A few poorly protected remote devices are already enough to form an entry point, whatever their number.
Anticipating cost and prerequisites
VDI is not free, and underestimating it is the surest way to fail the rollout. It requires infrastructure sized in servers, fast storage and memory, licences depending on the chosen solution, and above all bandwidth and endpoints up to the task, since perceived smoothness depends on them. A VDI that is technically successful but slow in use will be rejected by users, however secure it is.
That is why a prior audit of the estate and the network, followed by a pilot with a small group, remains the best way to secure both budget and timetable. You validate real comfort before generalising, rather than discovering the limits once everyone has switched over.
A structural answer, provided it is prepared
Done well, VDI provides a fundamental answer to securing hybrid work: data stays at the centre, devices are no more than a window, and management becomes simpler. But its success depends as much on preparation as on the technology chosen. We help you analyse, size and deploy the right solution for a small business, usually Parallels RAS or Proxmox: discover our VDI and virtual desktops service, our Citrix audit and optimisation if you already run Citrix, or contact us.
Sources: Insee Analyses, remote work and on-site work · SafeITExperts, cyberattacks and vulnerabilities, monthly overview