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Cyber risk management (ISO 27005)

You can only protect properly what you have first understood. Risk management is the engine of effective security: it connects threats, their impacts and protection decisions. The ISO 27005 standard provides a proven framework.

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Why manage risks (and not just “do security”)?

Stacking security measures without a method leads to spending heavily on minor risks while leaving critical blind spots. Risk management reverses the logic: it starts from the feared consequences for the organization, and sizes the measures accordingly.

ISO 27005 provides the guidelines for conducting this approach within the framework of an ISO 27001 ISMS. It complements a method such as EBIOS Risk Manager and also feeds impact assessments GDPR (DPIA).

The risk management cycle

Establish the context

Define the scope, risk criteria and level of acceptance specific to the organization.

Identify risks

Identify assets, threats, vulnerabilities and potential impacts.

Analyze & evaluate

Estimate likelihood and severity, then prioritize risks according to the defined criteria.

Treat the risk

Reduce, transfer, avoid or accept, and formalize the residual risk assumed.

Monitor & review

Track how risks evolve and how effective measures remain over time, to adjust the system.

Communicate & consult

Involve stakeholders at every stage so the system is shared and actually applied.

Four ways to treat a risk

When facing a risk, four options exist: reduce it (security measures), transfer it (insurance, outsourcing), avoid it (give up the risky activity) or accept it knowingly. The goal is not “zero risk” (which does not exist), but an informed and documented decision, validated at the right level of the organization. This is where risk management connects with governance.

A continuous process, not a one-off project

A risk assessed yesterday may change tomorrow: a new threat, a new tool, a new supplier. Risk management is therefore a continuous cycle, with regular communication to decision-makers and risk monitoring over time. Integrated into the ISMS, it feeds the treatment plan, the audits and incident response.

Implementing risk management, step by step

1

Define the context & criteria

Set the scope, rating scale and acceptable risk level.

2

Identify risks

List assets, threats, vulnerabilities and business impacts.

3

Assess & prioritize

Rate and prioritize to focus effort where it matters.

4

Choose the treatment

Reduce, transfer, avoid or accept, and build the treatment plan.

5

Formalize the residual risk

Have accepted risks approved at the right decision-making level.

6

Monitor & review

Monitor how risks evolve and reassess periodically.

Why work with BCIT?

An approach driven by business stakes

We start from your feared consequences to size security proportionately.

Recognized methods

We combine ISO 27005 and EBIOS RM according to your need: the standards framework for compliance, the scenario-based approach to convince your management, without an oversized method for your size.

Integrated into your ISMS

Risk management feeds your ISO 27001 approach and your compliance.

Invest where the risk requires it

Let’s take 15 minutes to structure your risk management and prioritize your security efforts on what truly matters.