Clearing Objects Prior to Reuse

The Trusted Solaris environment prevents inadvertent exposure of sensitive information by automatically clearing (erasing) user-accessible objects, such as memory and disk space, prior to reuse. Processes on the system continuously allocate, deallocate, and reuse objects, such as memory and disk space. Failure to erase sensitive data prior to reuse of the object risks exposing the data to inappropriate users. Through device deallocation, Trusted Solaris clears all user-accessible objects prior to allocating them to processes. Note, however, that you must clear any removable storage medium (floppy disk, magnetic tape, and the like) before another user can have access to it.