Correction to:

Chapter 5 in: M. Gill (ed.), The Handbook of Security , https://doi.org/10.1007/978-3-030-91735-7_5

Chapter 5 was previously published non-open access. It has now been changed to open access under a CC BY 4.0 license and the copyright holder updated to ‘The Author(s)’. The book has also been updated with this change.