The probability of something going wrong (e.g. a threat and its associated misbehaviour). It is the inverse of trustworthiness. One of two measures used to calculate risk levels.

A situation, action or event, (deliberate or accidental), which could cause a misbehaviour and/or result in harm to a system, network or organisation.

An unwanted change in status or abnormal behaviour of an asset. They are caused by threats.

Any human or non-human actor in the system/network under analysis.

A visual representation of the unique network under analysis.

System Security Modeller (SSM) is a risk analysis and compliance tool for businesses to easily identify cyber security threats, policy compliance needs, and threat mitigation strategies.

The total set of relationships between human and non-human assets, external contexts and constraints, policies and actions which make up a system or network.