Hein S. Venter, Marianne Loock, Marijke Coetzee, Mariki M. Eloff, Jan H. P. Eloff: Information and Cyber Security - 18th International Conference, ISSA 2019, Johannesburg, South Africa, August 15, 2019, Proceedings. Communications in Computer and Information Science 1166, Springer 2020, ISBN 978-3-030-43275-1