The following references contain useful security information for Oracle Solaris systems. Security information from earlier releases of Oracle Solaris contain some useful and some outdated information.
The following books and articles on the Oracle Solaris 11 Documentation web site contain descriptions of security on Oracle Solaris 11 systems:
Securing Systems and Attached Devices in Oracle Solaris 11.3
Securing Files and Verifying File Integrity in Oracle Solaris 11.3
Managing Kerberos and Other Authentication Services in Oracle Solaris 11.3