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Methodology

A proven method to master your cyber risks

Our support follows a structured 6-step approach, grounded in leading frameworks (ISO 27001, EBIOS Risk Manager, NIST, CIS) and over 10 years of field experience across SMBs and large enterprises.

In short: NagaShield Security applies a 6-step approach — (1) scoping, (2) audit, (3) EBIOS Risk Manager risk analysis, (4) prioritised treatment plan, (5) implementation and support, (6) monitoring and continuous improvement (PDCA). The goal: security proportionate to real risk, aligned with ISO 27001 and the NIS2 directive.

1

Scoping & context

Understand your business stakes, scope and regulatory constraints.

  • Identification of critical assets and processes
  • Clarifying objectives (certification, compliance, risk reduction)
  • Defining the scope and stakeholders
2

Audit & assessment

Objectively measure your current security posture.

  • Technical review (systems, networks, Cloud, access)
  • Organisational review (policies, processes, governance)
  • Maturity level assessment
3

Risk analysis (EBIOS RM)

Prioritise risks by likelihood and business impact.

  • Threat scenarios and risk sources
  • Likelihood × impact assessment
  • Risk ranking and residual risks
4

Prioritised treatment plan

Turn findings into a clear, actionable roadmap.

  • Measures prioritised by impact / effort ratio
  • Alignment with frameworks (ISO 27001, CIS, ANSSI)
  • Milestones, owners and tracking indicators
5

Implementation & support

Deploy measures and upskill your teams.

  • Technical hardening and ISMS build-out
  • Drafting useful policies and procedures
  • Awareness for teams and management
6

Monitoring & continuous improvement

Embed security over time (PDCA logic).

  • Indicators (KPI / KRI) and management reporting
  • Periodic reviews and audit preparation
  • Adapting to new threats and regulations

Our engagement principles

Pragmatism: security proportionate to real risk, without over-documentation.

Risk-based prioritisation: we tackle what matters to your business first.

Pedagogy: every decision is explained so it is understood and owned.

Transparency: clear deliverables, readable by both technical teams and management.

Independence: recommendations free of commercial conflict of interest.

Frameworks & standards used

ISO/IEC 27001ISO/IEC 27002EBIOS Risk Manager (ANSSI)NIST CSFCIS ControlsNIS2 DirectiveGDPR

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