2.9 Security
This section documents the system-wide security issues that are not otherwise described in the specifications for the member protocols. It does not duplicate what is already in the member protocol specifications unless there is a unique aspect that applies to the system as a whole.
Transaction processing services are designed to protect the following assets:
Transaction information, see Transaction Information Security (section 2.9.1)
System configuration, see System Configuration Security (section 2.9.2)
Messages, see Message Security (section 2.9.3)
Events, see Event Security (section 2.9.4)
This is illustrated in the following diagram, where the system is shown communicating with a resource manager and an application service.

Figure 11: Transaction processing services assets