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Systems Cybersecurity Designer

Released on: November 8, 2024

The 2024x Refresh2 release introduces a set of new features and enhancements for Threat Analysis and Risk Assessment analysis as per ISO/SAE 21434:2021.

Cybersecurity Assurance Level

Cybersecurity Assurance Level Property

A Cybersecurity Goal contains a new property Cybersecurity Assurance Level(CAL) depicting the cybersecurity assurance level that has been assigned to the goal either directly or via a derivation of another Cybersecurity Goal.


Cybersecurity Assurance Level property displayed in the Specification dialog.

The ISO 21434 Profile project contains a default set of 4 CAL values. You can also use a custom set of CAL values.


CAL package containing four CAL values in the Containment Tree.

Cybersecurity Goal Assurance Table


Cybersecurity Goal Assurance Table helps you to specify the CAL value for each Cybersecurity Goal. Only one CAL value can be assigned for one Cybersecurity Goal.


Cybersecurity Goal Assurance Table

Global Risk Map in the TARA Report

 A Global Risk Map spreadsheet is now available as part of the TARA Report provided with the Report Wizard capability.  The spreadsheet displays the mapping of Threat Scenarios corresponding a given Impact Rating and a given Attack Feasibility Rating.

Global Risk Map in the TARA Report

Threat Scenario Residual Risk

Similar to the four SFOP Risk Values and the subsequent Global Risk Value, properties for representing corresponding Residual Risk Values for a Threat Scenario can be specified.  The values can be specified through the TARA table or the specification window of a Threat Scenario by selecting a number from the drop down or typing in any number between 0.0 and 5.0.


Residual Risk Values present in TAR table.

Residual Risk Values present in the Specification dialog.

Other Improvements

OOTB Model Library Version

The provided model libraries are tagged with the version number corresponding to the data set from which the library was created/updated.


OOTB Model Library Version

NIST Control Library Families

The NIST Control Library’s package structure properly reflects the names of the NIST Families.


NIST Families names displayed in the library structure.