Security in-a-box is an online guide designed to help advocates and human rights defenders protect their computer records and general privacy from malicious intrusion by security agencies and other hackers. The guide is a collaboration between the Tactical Technology Collective and Front Line Defenders.
Security in-a-box includes:
- a how-to booklet which addresses a number of important digital security* issues, and
a collection of hands-on guides.
- The how-to booklet explains the issues you must understand in order to safeguard your digital security. It identifies and describes the risks you face and helps you make informed decisions about how best to reduce those risks. It answers questions related to basic security, data protection and privacy of communication.
Each guide includes a freeware or open source software tool, and instructions on how to use that tool to secure your computer, protect your information and maintain the privacy of your Internet communication.
Chapter 1 is entitled How to protect your computer from malware and hackers. It explains why keeping your computer healthy is critical to better security. It’s important to take the first step of ensuring that your computer is not vulnerable to hackers or plagued by malicious software such as viruses and spyware – before you worry too much about strong passwords, private communication and secure deletion.
You can find Chapter 1 here: https://securityinabox.org/chapter-1 
* Digital security involves protecting your digital identity – the network or Internet equivalent of your physical identity. It involves using tools to ensure that your identity, assets and technology are safe and uncompromised in the online and mobile world.