This section describes the countermeasures that should be implemented and the behavior of the system when these countermeasures are implemented.

Countermeasures to be implemented are classified into the following two types:

• Countermeasures to be implemented against preconditions
  This type of measure is for dealing with the preconditions checked in 4.6 Checking the preconditions for a secure system.
  
• Countermeasures to be implemented against expected threats
  This type of measure is for dealing with the expected threats described in 4.7 Analyzing expected threats.
  

The following subsection describes these types of measures.

Organization of this section

4.8.1 Countermeasures to be implemented against preconditions

4.8.2 Countermeasures to be implemented against expected threats

4.8.3 Secure system behavior with the countermeasures implemented