You may already be aware of this, but DoD concluded a 2 year study about cyber deterrence back in February of this year. The report (in .PDF) can be found at http://www.acq.osd.mil/dsb/reports/2010s/DSB-CyberDeterrenceReport_02-28-17_Final.pdf
As regards to a part of cybercrime, i.e. socioeconomic cybercrime popular in the Sub-saharan region have a look at the following (given that jurisdictional cultures and nuances apply both online and offline):