Senses

add-on security · SynAc

TERM

add-on security

Incorporation of new or additional hardware, software, or firmware safeguards in an operational information system.

Updated

Jan 06, 2026

Senses

Sense 1

Incorporation of new or additional hardware, software, or firmware safeguards in an operational information system.

NIST CSRC Glossary

Bibliography

NIST CSRC Glossary
Accessed Jan 05, 2026Quoted
add-on security
https://csrc.nist.gov/glossary/term/add_on_security
NIST states most site information is public information and may be distributed or copied, except material marked as copyrighted; attribution requested. Verify per-document markings before quoting.
Source: NIST CSRC Glossary (csrc.nist.gov).

(N)

The retrofitting of protection mechanisms, implemented by hardware or software, in an information system after the system has become operational. [FP039] (Compare: baked in security.)

The retrofitting of protection mechanisms, implemented by hardware or software, in an information system after the system has become operational. [FP039] (Compare: baked-in security.)

IETF RFC 4949 (Internet Security Glossary)

Bibliography

IETF RFC 4949 (Internet Security Glossary)
Accessed Jan 06, 2026Quoted
RFC 4949 — Internet Security Glossary (Version 2)
https://www.rfc-editor.org/rfc/rfc4949.txt
RFC 4949 is published by the IETF Trust and marked as "Distribution of this memo is unlimited". Verify IETF Trust copyright/licensing terms for reuse.