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Hardening

nouncandidate·updated May 9, 2026

Configuring a host’s operating systems and applications to reduce the host’s security weaknesses.

Framework senses

SANS Glossary of Security Terms1 senseview framework →
§1
Hardening is the process of identifying and fixing vulnerabilities on a system.
Federal Financial Institutions Examination Council (FFIEC) IT Examination Handbook Infobase, Glossary1 senseview framework →
§1
The process of securing a computer's administrative functions or inactivating those features not needed for the computer's intended business purpose.
NISTIR 7298: Glossary of Key Information Security Terms, Revision 21 senseview framework →
§1
Configuring a host’s operating systems and applications to reduce the host’s security weaknesses.
NIST SP 800-1231 senseview framework →
§1
Configuring a host’s operating systems and applications to reduce the host’s security weaknesses.