Plain-language definition
Sending messages that appear to come from someone else, such as a bank.
Technical definition
Spoofing submits an unauthorised alphanumeric or numeric originator, or a look-alike variation, to impersonate a trusted sender; detection uses registries, variation matching and route correlation.
Why it matters
Spoofing enables smishing and social engineering; registry enforcement and handset verification defend against it.
Last reviewed 2026-09-12 by the Guardivia QoS Engineering Team. Product facts on this page describe current capabilities; items marked “where supported”, “optional”, “integration” or “consultancy” are confirmed per deployment.