Definition
Threat modeling is a structured process for identifying potential threats and vulnerabilities within a system or application. It involves analyzing how an adversary might attack a system, what assets are valuable, and what countermeasures can be implemented to prevent or mitigate those attacks. By proactively understanding potential risks, organizations can build more secure and resilient systems from the ground up. This process typically involves steps like defining the system, identifying threats, documenting vulnerabilities, and planning mitigation strategies. Implementing threat modeling is crucial for reducing the likelihood and impact of security breaches, saving significant costs and protecting sensitive data. For instance, a financial institution might threat model its online banking platform to identify potential ways attackers could steal customer credentials. While related to risk assessment, threat modeling focuses specifically on the adversarial perspective and potential attack vectors, rather than just general risk factors. This concept is frequently encountered in cybersecurity certifications like CompTIA Security+ and CySA+.