1) Standard reference material 
[Unix] srm (or Secure Remove) is a command line utility for Unix-like computer systems for secure file deletion. ==Platform-Specific Behaviours and Bugs== ===Filesystems with Hard Links=== Attempting to secure delete a file with multiple hard links results in a warning from srm stating that the current access path has been unlinked, but the...
Security Reference Manager, details ...
Security Reference Monitor
acronym: standard reference material
Standard Research Method