This book is freely online available it is very good book for beginers for information security people in this book i discussed lot of examples how to provide security to you computer and your devices and what software and hardware is required i mentioned the studentes practice this book they have a good idea to information security i am planing to write the next book wireless networking mobile computing. Это и многое другое вы найдете в книге Hand book of security (Saidhbi Beebi)