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IT Security Company

IT Security Company for Small and Medium-Sized Businesses

Since 2010, IT Systèmes has been helping small and medium-sized businesses and mid-market companies protect their information systems through audits, workstation and network security, SOC monitoring, and compliance with GDPR, NIS2, and DORA. A single point of contact, from initial assessment to ongoing monitoring.

2010
année de création d'IT Systèmes
24/7
SOC monitoring
RGPD
NIS2, DORA

Pourquoi une PME fait appel à une entreprise de cybersécurité

Recruiting and maintaining an in-house IT security team (security architect, SOC analyst, compliance expert) rarely fits within the budget of an SME or mid-sized company. A service provider pools these skills and monitoring tools across multiple clients, making protection accessible without compromising on the standards expected by your partners, insurers, or clients during a request for proposals.

It's also a matter of continuity: threats don't adhere to business hours, and maintaining round-the-clock monitoring and supervision requires a dedicated organization—one that few companies can manage on their own.

IT Systems Consultant showing a monitoring dashboard to a colleague

Ce que font nos experts en cybersécurité

IT Security Audit

Technical and organizational assessment of your IT system, risk matrix, and prioritized action plan. Learn more about the audit

Endpoint Security and EDR

Protection of workstations against malware and ransomware, and automated incident detection and response.

Network security

Next-generation firewalls, remote access security, segmentation, and protection against DDoS attacks. See Network Security

Infrastructure Security

Hardening of servers and virtualized environments, patch management, and security maintenance. See Infrastructure Security

24-hour SOC monitoring

Centralization of logs in an SIEM and continuous monitoring to detect and contain an incident before it spreads.

GDPR, NIS2, and DORA Compliance

Regulatory compliance and ongoing support as requirements evolve. See our cybersecurity expertise

Entreprise de cybersécurité à Paris (Malakoff) et en Île-de-France

IT Systèmes is based in Malakoff, in the Hauts-de-Seine department. On-site visits naturally occur most frequently in the Île-de-France region, but our teams also travel to other parts of France depending on the project. Support, SOC monitoring, and patch management are provided remotely for all of our clients throughout France.IT Systems Team in a meeting at the Malakoff offices

Your industry has its own safety requirements

Law firms, accounting firms, manufacturing, architecture: every industry has its own specific obligations and risks. Learn more about our specialized support:

Why Choose IT Systèmes as Your IT Security Provider

  • Cybersecurity expertise built up since 2010, working with small and medium-sized businesses and mid-sized companies across a variety of sectors.
  • Une business unit dédiée à la cybersécurité, avec dans nos équipes Hakim Taoussi, Microsoft MVP Security et spécialiste de Microsoft Defender XDR.
  • A comprehensive scope: auditing, workstation and network security, backups, monitoring, and compliance—all without having to work with multiple service providers.
  • Support tailored to each company's budget and level of maturity, without requiring unnecessary equipment.
  • 33 certifications Microsoft actives au 4 septembre 2026 et une certification ISO/IEC 27001 délivrée par AFNOR Certification pour nos activités de conseil, projets, sécurité et infogérance.
  • Note Google de 4,8/5 sur 35 avis (octobre 2026).

Our Approach

  1. Initial audit. We assess the current environment: workstations, network, servers, backups, and organizational practices.
  2. The action plan sets priorities. Identified vulnerabilities are ranked by risk level and ease of implementation.
  3. Implementation of measures. Protecting workstations, securing the network, and hardening servers, in accordance with the plan approved with you.
  4. Continuous monitoring. SOC monitoring, patch management, and regular reviews to maintain the level of protection over time.

Frequently asked questions

Que fait une entreprise de cybersécurité pour une PME ?

Elle évalue les risques, met en place les protections (postes, réseau, sauvegardes, accès), surveille le système d'information pour repérer les incidents et aide à respecter les obligations comme le RGPD ou NIS2. Chez IT Systèmes, nos experts en cybersécurité prennent en charge l'ensemble, du diagnostic à la supervision continue.

What is the difference between an IT security audit and consulting services provided by a vendor?

An audit is a one-time assessment that provides an overview of the current situation and outlines an action plan. As a service provider, our support includes implementing these actions and monitoring them over time: protecting workstations and the network, providing oversight, and updating systems to address new threats.

Does an SME really need an IT security provider?

SMEs and mid-sized companies are frequent targets, in part because they often have fewer safeguards than large companies. A service provider offers access to expertise and oversight that few SMEs can afford to fund in-house.

Sécurité informatique en PME : par où commencer ?

Par un état des lieux de votre sécurité actuelle : c'est l'objet du Diag cyber d'IT Systèmes, un forfait de 1 000 €, qui met en évidence les priorités. Si vous souscrivez ensuite à notre infogérance, ces 1 000 € vous sont remboursés, et l'infogérance inclut chaque année un audit de sécurité et un audit de votre environnement Microsoft 365 (dont la gouvernance des données). Les premières mesures portent souvent sur l'authentification multifacteur, la protection des postes (EDR) et des sauvegardes hors ligne testées.

How long does it take to set up comprehensive protection?

It depends on the scope and initial maturity of the information system. The initial audit helps establish a realistic timeline, with the most urgent actions addressed first.

Does IT Systèmes operate outside of Malakoff and the Île-de-France region?

On-site visits naturally occur most frequently in the Île-de-France region, but our teams also travel to other parts of France depending on the project. Support, SOC monitoring, and patch management are provided remotely for all of our clients throughout France.

Is IT Systèmes certified in IT security?

IT Systèmes compte 33 certifications Microsoft actives au 4 septembre 2026 et est certifié ISO/IEC 27001 par AFNOR Certification pour ses activités de conseil, de réalisation de projets, de sécurité et d'infogérance, sur son site de Malakoff (certificat n° 2026/119451.1, valable jusqu'au 20/09/2029).