Obtaining reasonable assurance on cyber resilience

The purpose of this paper is to highlight the potential of cyber-testing techniques in assessing the effectiveness of cyber-security controls and obtaining audit evidence.

The paper starts with an identification of the applicable cyber-testing techniques and evaluates their applicability to generally accepted assurance schemes and cyber-security guidelines.

Cyber-testing techniques are providing insight in the effectiveness of the actual implementation of cyber-security controls, which may significantly deviate from the conceptual designs of these controls. Furthermore, cyber-testing techniques could provide concise input for cyber-risk management and improvement recommendations.

The presented cyber-testing techniques could complement traditional process-oriented assurance techniques with specialized technical analyses of real-world implementations that focus on the adversaries’ viewpoint.