Threat modelling is a structured process for identifying, assessing and mitigating security threats to a system or application. It helps organisations identify potential risks at an early stage and develop appropriate risk mitigation measures to ensure the security of sensitive data.
Threat modelling is important because it enables organisations to systematically identify vulnerabilities and take proactive steps to improve their security architecture. In an era of increasing cyber threats, it helps to minimise the risk of data breaches and increase customer confidence.
The threat modelling process typically involves the following steps:
- Identify assets and data flows.
- Identify threats and vulnerabilities.
- Assess and prioritise risks.
- Develop and implement protective measures.
Ideally, different stakeholders should be involved in the threat modelling process, including IT security experts, system architects, developers and privacy representatives. Interdisciplinary collaboration ensures that all relevant aspects are considered.
Threat modelling should be carried out regularly, especially when new systems, technologies or processes are introduced. It should also be regularly updated to take account of new threats and to review and adapt existing protective measures.