About: zero-day attack

Premodifier: zero-day
Head noun: attack

Same concepts
http://dbpedia.org/resource/Zero-day_(computing)

Broader concepts

label	provenance	confidence
advanced threat	isap:394507053	0.701068
threat	isap:394506967	0.622011
network	isap:444808073	0.518337
malware	isap:444065414	0.329498
company	isap:446696420	0.263643

Narrower concepts

label	provenance	confidence