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.
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.

Technical and organizational assessment of your IT system, risk matrix, and prioritized action plan. Learn more about the audit
Protection of workstations against malware and ransomware, and automated incident detection and response.
Next-generation firewalls, remote access security, segmentation, and protection against DDoS attacks. See Network Security
Hardening of servers and virtualized environments, patch management, and security maintenance. See Infrastructure Security
Centralization of logs in an SIEM and continuous monitoring to detect and contain an incident before it spreads.
Regulatory compliance and ongoing support as requirements evolve. See our cybersecurity expertise
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.
Law firms, accounting firms, manufacturing, architecture: every industry has its own specific obligations and risks. Learn more about our specialized support:
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.
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.
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.
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.
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.
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 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).