Personal Cybersecurity: How to Avoid and Recover from Cybercrime

© Marvin Waschke 2017

Marvin WaschkePersonal Cybersecurity10.1007/978-1-4842-2430-4_3

3. How Does Computer Security Work?

It’s Harder Than It Looks

Marvin Waschke¹ 

(1)

Bellingham, Washington, USA

 

Cybersecurity is a complex and highly technical subject that uses many tools. It starts with the security provisions built into the chips that power the computer. Software must comply with rules established in hardware and use those rules to enforce more complex security policies. Much of security also depends on the way the software is used. This chapter explains some of the basic tools and principles that are used in secure computing.

Security in Hardware

Computer hardware enforces most security. One or more central processors are at the heart of every computer. ...