Methods 1: qualitative evaluation
Qualitative evaluation is a simple method, which is helpful to evaluate the potential risks and threats of information network security. The main idea of this method is to analyze and evaluate security threats based on experience and professional knowledge. Evaluation results are usually expressed in the form of probability, such as low, medium and high grades.
Method 2: Quantitative evaluation
Quantitative assessment is a more scientific and accurate method, which is based on mathematical model to quantitatively assess security risks. The main steps of this method include: defining risk index, establishing mathematical model, collecting data, calculating risk probability and evaluating risk grade. Quantitative evaluation methods usually need professionals and certain technical and tool support.
Method 3: Combination evaluation
Combinatorial evaluation is a combination of qualitative and quantitative evaluation methods. The main advantage of this method is that it can comprehensively use the advantages of qualitative and quantitative evaluation methods to comprehensively and deeply evaluate the security risks of information networks.
Matters needing attention in the evaluation process
1. Determine the scope and objectives of the assessment, including the objects to be assessed and the types of risks to be assessed.
2. Collect and sort out the information and data needed for evaluation, including information such as security policy, security control, network topology and security events.
3, determine the evaluation methods and steps, including evaluation indicators, evaluation standards, evaluation methods and technical tools.
4. Conduct risk assessment and analysis, including threat analysis and assessment, quantitative or qualitative risk analysis, etc.
5. Make risk management plan, including determining risk control strategy, making risk emergency plan, and establishing risk monitoring and evaluation mechanism.
In a word, information network security risk assessment is a very important task, which can help enterprises, organizations or individuals identify and manage potential security threats and risks. By adopting appropriate evaluation methods and technical tools, the effect of security prevention and management can be improved, and the loss and influence caused by information network security risks can be reduced.