Rick Lehtinen

Rick Lehtinen is an experienced security trainer and security course developer.

Computer Security Basics Computer Security Basics
by Rick Lehtinen, G.T. Gangemi, Sr.
Second Edition June 2006
Print: $44.99
Ebook: $35.99

Recent Posts | All O'Reilly Posts

Rick blogs at:

Computer Security Basics

July 17 2009

Hi, It is about time I got started on this blog. Computer Security Basics was a landmark book when it was first published in the early 90s. I was honored to have the chance to update it in 2006. Now... read more

Recent Posts | All O'Reilly Posts

"Aimed at beginners interested in learning the fundamentals of computer security, this book proves itself as a valuable guide that will take beginners on a journey through diverse areas of this challenging topic."
--Mirko Zorz, Help Net Security

"Computer Security Basics reads like a textbook. If you’re taking Computer Security 101, or just have an interest in computer history, cryptology, or government security standards – if you’d like to know how viruses and worms work, or the vulnerabilities of TCP and UDP – this book will meet your needs. On the other hand, veteran IT professionals will probably find this book too basic – if you already know the difference between DES, AES, and RSA, you’ll probably find this book covers ground you traveled some time ago."
--Ken Rogers, Greater Cleveland PC Users Group