security consultant vs adviser

security consultant and adviser both are nouns.

Word	Noun	Adjective	Verb	Adverb
security consultant	Yes	No	No	No
adviser	Yes	No	No	No

As nouns, adviser is a hypernym of security consultant; that is, adviser is a word with a broader meaning than security consultant:

Other hypernyms of security consultant include advisor, consultant.

security consultant (noun)	adviser (noun)
an adviser about alarm systems to prevent burglaries	an expert who gives advice