Software that is secretly or surreptitiously installed into an information system to gather information on individuals or organizations without their knowledge; a type of malicious code.
Source(s):
CNSSI 4009-2015 from NIST SP 800-53 Rev. 4
NIST SP 800-128 from CNSSI 4009-2015
NIST SP 800-128 under Spyware from CNSSI 4009
NIST SP 800-53 Rev. 5
NIST SP 800-53 Rev. 4 [Superseded] under Spyware

  Software that is secretly or surreptitiously installed into a system to gather information on individuals or organizations without their knowledge; a type of malicious code.
Source(s):
NIST SP 800-12 Rev. 1 under Spyware from NIST SP 800-53

  Software that is secretly or surreptitiously installed onto an information system to gather information on individuals or organizations without their knowledge; a type of malicious code.
Source(s):
NIST SP 800-82 Rev. 2 under Spyware from NIST SP 800-53

  Software that is secretly or surreptitiously installed into an information system to gather information on individuals or organizations without their knowledge.
Source(s):
NIST SP 800-18 Rev. 1 under Spyware

  A program embedded within an application that collects information and periodically communicates back to its home site, unbeknownst to the user.
Source(s):
NIST SP 800-28 Version 2 under Spyware

  Malware intended to violate a user’s privacy.
Source(s):
NIST SP 800-45 Version 2 under Spyware

  Malware specifically intended to violate a user’s privacy.
Source(s):
NIST SP 800-69 [Withdrawn] under Spyware