Current Research Trends in IoT Security: A Systematic Mapping Study

Table 3

Research question and review protocol.

Research goal		What are the research trends in IoT security?
Review protocol	Search terms	(“IoT” OR “Internet of things”) AND (“secure” OR “security” OR “privacy” OR “trust”) in title
	Resources	Scopus
	Study selection criteria	Journal articles written in English
	Study selection procedures	Two researchers searched the databases and checked each other’s work.
	No. of studies satisfying criteria	1,528
Study filtering	Duplication	−2
	Unavailable abstract	−13
	Unavailable author keywords	−148
	No. of studies after filtering	1,365