The Computer Security Tool - "CST Rating"

The Computer Security Tool ("CST") rating is a measure of how secure a computer is when tested against the CST Scan Issues List. A high CST score, for example "95/100", indicates strong computer security. A low CST score, for example "27/100" indicates weak security.

Each Security Issue in the Scan Issues List has a risk rating, ranging from very high to very low. The CST Rating is devised from a mathematical calculation in which each Risk Level is given a weighting (For example, a computer with numerous "Low Risk" Security Issues only may receive a higher CST Rating than a computer with a several "High Risk" issues).

It is possible to score "100/100", meaning that all security issues detected by the Computer Security Tool have been fixed and are now in a secure state. However, a score of "100/100" is NOT a guarantee of absolute security. No computer can ever be absolutely secure.

You will note that a different CST score may appear when a computer is scanned in Basic Mode and then Advanced Mode. This is because there are certain security issues which can only be actioned in advanced mode and are therefore not part of the CST calculation in Basic Mode.

If an security issue is added to the Ignored Issues List it is subsequently not included in the CST calculation.