Spoofing

nouncandidate·updated May 12, 2026

GlossaryL1 — what DictionaryL2 — how used ThesaurusL3 — relations Universaleverything

1. Faking the sending address of a transmission to gain illegal entry into a secure system. Impersonating, masquerading, piggybacking, and mimicking are forms of spoofing. 2. The deliberate inducement of a user or resource to take incorrect action.

Framework senses

9 senses across 7 frameworks

National Initiative for Cybersecurity Careers and Studies (NICCS) Cybersecurity Lexicon1 senseview framework →

§1 · extended_definition_available: Faking the sending address of a transmission to gain illegal [unauthorized] entry into a secure system.

ISACA Cybersecurity Glossary1 senseview framework →

§1: Faking the sending address of a transmission in order to gain illegal entry into a secure system

Federal Financial Institutions Examination Council (FFIEC) IT Examination Handbook Infobase, Glossary1 senseview framework →

§1: A form of masquerading where a trusted IP address is used instead of the true IP address as a means of gaining access to a computer system.

NISTIR 7298: Glossary of Key Information Security Terms, Revision 23 sensesview framework →

§1: “IP spoofing” refers to sending a network packet that appears to come from a source other than its actual source.
§2 · sense_2_pending_review: Involves— 1) the ability to receive a message by masquerading as the legitimate receiving destination, or 2) masquerading as the sending machine and sending a message to a destination.
§3 · sense_3_pending_review: 1. Faking the sending address of a transmission to gain illegal entry into a secure system. Impersonating, masquerading, piggybacking, and mimicking are forms of spoofing. 2. The deliberate inducement of a user or resource to take incorrect action.

CNSSI-4009 (Glossary of Information Assurance Terms)1 senseview framework →

§1: 1. Faking the sending address of a transmission to gain illegal entry into a secure system. Impersonating, masquerading, piggybacking, and mimicking are forms of spoofing. 2. The deliberate inducement of a user or resource to take incorrect action.

NIST SP 800-481 senseview framework →

§1: “IP spoofing” refers to sending a network packet that appears to come from a source other than its actual source.

FIPS PUB 1911 senseview framework →

§1: Involves— 1) the ability to receive a message by masquerading as the legitimate receiving destination, or 2) masquerading as the sending machine and sending a message to a destination.