You can download the content from this website for free as an eBook in Dutch. The Dutch version is derived from the original English book from 2014 and the update in 2016. Download for free. No registration required. Use it, copy it, translate it, anything your like – CC4.0 licence.
The latest English version dates from 2020, it is is a thorough update of the 2016 edition.
In January 2020 we published a book via '#TeamArjen. It contains two parts: - part 1 - a collection of articles written by Arjen - part 2 - the 2020 update of the InfoSec handbook. More information an free download here: Infosecurity – Gran knows why