In a few days, it will be seven years since 276 female students were kidnapped by Boko Haram insurgents from a Secondary School in Chibok town in Borno State, Nigeria. Over the years, some of the students managed to regain their freedom, but an unknown number are still in captivity. Meanwhile, more recently, there has been a spike in school abductions in northern Nigeria. CEO of Zoomlens Security Solutions, Dennis Amachree joins CNBC Africa for more.