What is a 'security audit'?

A 'security audit' refers to a comprehensive review of security measures within an organization. This process involves evaluating existing security protocols, practices, and systems to identify strengths and weaknesses. The goal is to ensure that the security measures in place are effective and adequate for protecting the organization's assets, personnel, and information. During a security audit, aspects such as physical security, cybersecurity, policies and procedures, and compliance with regulations are assessed. The findings of the audit can lead to improvements in security strategies and overall risk management.

The other options focus on specific aspects that do not capture the holistic nature of a security audit. For example, a routine check of employees' skills tends to focus on individual performance rather than the overall security framework. A visual inspection of the facility may identify immediate physical issues but wouldn't encompass policies or procedural evaluations. Lastly, a survey of employee satisfaction is unrelated to security measures and pertains more to human resources or management practices. Therefore, the best representation of a 'security audit' is indeed a comprehensive review of security measures.