There is the excellent InfoSec for Journalist handbook from Silkie Carlo and Arjen Kamphuis. The latest edition is from 2016 but it still contains valuable information and it covers a lot of topics. The handbook is no longer being updated which is likely caused by the disappearance from Arjen Kamphuis in August 2018.
I also found this more elaborate book, a collection of articles, posts and lectures and a handy InfoSec guide from Arjen Kamphuis. The InfoSec guide starts at page 307 but is probably the same as the one linked to above.
There is the excellent InfoSec for Journalist handbook from Silkie Carlo and Arjen Kamphuis. The latest edition is from 2016 but it still contains valuable information and it covers a lot of topics. The handbook is no longer being updated which is likely caused by the disappearance from Arjen Kamphuis in August 2018.
https://beschermjegegevens.nl/wp-content/uploads/InfoSec-for-Journalists-V1.3-1.pdf
I also found this more elaborate book, a collection of articles, posts and lectures and a handy InfoSec guide from Arjen Kamphuis. The InfoSec guide starts at page 307 but is probably the same as the one linked to above.
https://beschermjegegevens.nl/wp-content/uploads/arjenkamphuis-infosecurity-small.pdf