Steady State definition in Computer Security terms:
Definition(s): An asset or part of an asset that has been delivered and is performing the mission.
Source(s): NIST SP 800-65 Rev. 1
A characteristic of a condition, such as value, rate, periodicity, or amplitude, exhibiting only negligible change over an arbitrarily long period of time.
Source(s): NIST SP 800-82 Rev. 2 (ANSI/ISA-51.1-1979)
reference: CSRC Glossary