Abuse Case refers to a scenario or a set of scenarios in which actors with malicious intent exploit system vulnerabilities or weaknesses to cause damage, unauthorised access, data breaches, or any form of disruption. Unlike typical use cases, which describe how a system should function under normal, legitimate use, abuse cases specifically focus on how a system could be misused or attacked by malicious entities (often referred to as “threat actors”).
Malicious Intent:
- Actors aim to cause damage or gain unauthorised access
- Actions are deliberate and planned
Potential Targets:
- System components
- User data
- Other system actors
Types of Abuse Case:
- Data theft
- Denial of service attacks
- Privilege escalation
- Social engineering
Prevention Strategies:
- Input validation
- Access controls
- Encryption
- User education
Analysis Process:
- Identify potential vulnerabilities
- Model attacker behaviour
- Develop mitigation strategies
Abuse cases help security teams anticipate and prevent malicious activities.