https://security.ngoinabox.org/en/howtobookletTools and Tactics for Your Digital Security
This How-to Booklet is designed to explain the issues that you must understand in order to safeguard your own digital security. It seeks to identify and describe the risks you face and help you make informed decisions about how best to reduce those risks. To this end, it answers eight broad questions related to basic security, data protection and communication privacy.
Lots of good info on here - especially in security for beginners.