In a world where cybersecurity and digital sovereignty have become strategic priorities, SCASSI offers a 100% sovereign consulting service provided by experts based in France.

As such, we assist organizations with all sensitive matters, in compliance with the strictest national and European requirements.

Drawing on our expertise in complex and highly regulated environments, we offer a range of information security consulting services designed to address the most demanding security challenges.

Our in-depth understanding of industry-specific and regulatory requirements (DO-178C, IEC 62443, ISO 27001, SecNumCloud, etc.) enables us to translate cybersecurity requirements into concrete, effective, and realistic solutions that are central to your projects.

 

Our mission: to support organizations in designing, securing, and ensuring the compliance of their systems, by combining methodological rigor, technical expertise, and business knowledge.

For high-criticality environments, a customized approach

  • Embedded systems: security by design, real-time constraints, low power consumption, native non-connectivity... We know how to adapt SSI to these specific contexts.
  • Industrial Systems (OT): We combine IT cybersecurity with operational security to protect your production lines, equipment, and infrastructure.
  • Critical systems: Whether in aviation, aerospace, healthcare, or energy, every vulnerability can have major consequences. Our experts incorporate operational safety and availability requirements into all recommendations.

 

Consulting on secure image architecture

Secure Architecture Consulting

Build secure information systems from the ground up.

We help you organize your technical and organizational decisions to ensure that your information security architectures are effective, realistic, sustainable, and aligned with the latest cybersecurity standards.

We help you organize your technical and organizational decisions to ensure that your cybersecurity architectures are effective, realistic, and sustainable. Whether you’re launching a new project or securing an existing one, we take into account your operational constraints and your level of cybersecurity maturity.

Support for image security certification

Support for safety certification

Ensure your systems are compliant from start to finish.

We work with you to manage the entire certification process, from risk analysis to the implementation of safety measures, through to ongoing safety compliance. Our experts support you through both initial certifications and renewal processes.

Establishment of IT Security Governance

Establishment of IS Governance

Manage security at every level of your organization.

We help CISOs and decision-makers define security policies, formalize governance processes, and establish consistent practices across the entire IT environment.
Our goal: to embed security within your corporate culture.

Preparing for Cyber Crisis Management

Preparing for Cyber Crisis Management

Don't just endure the crisis—take control of it!

We work with you to develop cyber crisis management plans tailored to your specific challenges, and we conduct operational drills to test your teams’ responsiveness. Be prepared to act quickly, minimize the impact, and ensure business continuity.

A PACS service (Cybersecurity Support Provider)is a consulting or support service provided by a company certified byANSSI.

The goal is to help organizations—both public and private— strengthen their cybersecuritythrough structured and recognized initiatives.

Specifically, a PACS benefit may cover:

  • Security certification: assisting an organization in ensuring that its information systems comply with regulatory requirements.
  • Risk management: identifying, analyzing, and prioritizing threats to develop an appropriate security strategy.
  • Architecture security: designing or auditing robust and resilient architectures.
  • Preparing for cyber crisis management: anticipating and testing responses in the event of a major attack.

 As part of the PACS certification process, SCASSI offers to assist its clients in the following four areas:

Consulting on Information System Security Certification

We help organizations ensure that their information systems comply with regulatory and standards requirements. From needs analysis to the preparation of the certification application, we help you secure your digital environments while ensuring their compliance and resilience.

Consulting on Information Systems Security Risk Management

Cybersecurity requires a detailed understanding of risks. We help you identify, assess, and prioritize the threats to your strategic assets. Using proven methodologies (EBIOS RM, ISO 27005, etc.), we work with you to develop a risk management strategy tailored to your operational needs.

Consulting on the security of information system architectures

A robust architecture is the foundation of a secure information system. Our experts work with you to analyze and design reliable architectures that comply with best practices and security standards. Our goal is to build resilient infrastructures capable of withstanding threats while remaining agile and scalable.

Consulting Services for Preparing for Cyber-Related Crisis Management

Because no organization is immune to a major incident, we help you prepare to handle cyber crises. From developing response plans and conducting simulation exercises to raising team awareness, we strengthen your ability to respond quickly and effectively to minimize the impact of an attack.

 

 

Would you like to learn more about Scassi's SSI consulting services?

Browse our job openings or request a callback from one of our sales representatives.

 

 

FAQ

In an environment where cyber threats are becoming increasingly sophisticated and directly target sensitive assets, having access to expert guidance is essential.

An IT security consulting firm like SCASSI helps you identify, anticipate, and manage the risks facing your information systems, while ensuring the confidentiality, integrity, and availability of critical data.

It also serves as a means to strengthen your organization’s overall resilience, protect your expertise, and safeguard your digital sovereignty.

An SSI security audit is based on a structured methodology tailored to your specific needs. It typically includes:

• gathering information about your systems, processes, and architecture,
• analyzing risks and threats,
• identifying technical and organizational vulnerabilities,
• prioritizing vulnerabilities based on their potential impact,
• and providing concrete recommendations to strengthen your security posture.

SCASSI adapts this approach to critical, industrial, or embedded environments, taking into account safety, availability, and compliance requirements.

Our SSI consulting services include:

• Outsourced CISO

• Compliance (ISO 27001, GDPR, LPM, NIS2, SecNumCloud, etc.)

• Information Security Strategy and Governance

• Support for certification (IGI 1300, RGS, etc.)

• Design of secure architectures

• Cyber crisis management and business continuity

Our services are specifically designed for organizations that handle sensitive information, critical infrastructure, or sovereign technologies.

SCASSI helps you ensure compliance with current French and European standards and regulations.

Our consultants can help you:
• understand the legal requirements applicable to your industry,
• implement concrete and traceable security measures,
• and obtain the certifications or approvals required for your projects (ISO 27001, RGS, SecNumCloud, PCI DSS, etc.).

 

• Defense: The General Security Rule (RGS), the European Network and Information Security Directive (NIS), and national and international standards governing sensitive information systems (including the ANSSI SecNumCloud standard for cloud service providers).

 

• Space: Information system security standards in the aerospace sector, such as ECSS-Q-ST-60-02C (space system security), DO-178C for software safety in aviation, and the security requirements of NASA or ESA (European Space Agency) suppliers.

 

• Banking: The DORA (Digital Operational Resilience Act), which imposes strict requirements on the operational resilience of financial services and the cybersecurity of financial institutions. This regulation aims to ensure that banking sector participants are prepared to manage risks related to cyberattacks, system failures, and other incidents affecting their operations. In addition, the PSD2 Directive (Payment Services Directive 2) strengthens the security of electronic payments, and the NIS Directive governs the security of networks and information systems in critical sectors such as finance.

• Aviation: The DO-178C standard for the certification of embedded software, DO-254 for avionics hardware, and the safety requirements imposed by aviation regulatory authorities (such as EASA in Europe and the FAA in the United States).

 

• Automotive: ISO/SAE 21434 (cybersecurity for connected vehicles), ISO 26262 for the functional safety of in-vehicle systems, and UNECE R155, which sets cybersecurity requirements for vehicles in Europe.

 

We integrate legal, technical, and operational considerations to ensure robust and sustainable compliance that addresses issues of sovereignty and national security.

Adopting a proactive information security strategy allows you to:
• anticipate threats rather than react to them,
• reduce the operational and financial impact of security incidents,
• build trust among partners, customers, and authorities,
• and protect strategic assets (data, patents, know-how, infrastructure).

At SCASSI, we view cybersecurity not as a burden, but as a driver of performance, compliance, and sovereignty—especially in critical environments where even a single breach can have a major impact.