Kofia nyeusi (usalama wa kompyuta)
Silic, Mario; Lowry, Paul Benjamin (2019-09-04). "Breaking Bad in Cyberspace: Understanding why and how Black Hat Hackers Manage their Nerves to Commit their Virtual Crimes". Information Systems Frontiers. 23 (2): 329–341. doi:10.1007/s10796-019-09949-3. ISSN 1387-3326.