This authoritative, Apple-Certified training course is designed both for professionals who support Apple computers as well as Macintosh enthusiasts who want to upgrade, service, or troubleshoot their favorite systems. Fully revised, this third edition includes Apple's new models with Intel processors, the MacBook Pro, Mac mini, and iMac. Keyed to the learning objectives of the Apple Desktop Service and Apple Portable Service certification exams, this is the companion curriculum used in AppleCare Technician Training courses worldwide. The book starts out with basic computer theory and underlying technologies, then moves on to cover everything from networking to the nitty-gritty steps and diagrams for upgrading and troubleshooting six sample computer models.

The purpose of this book is to propose a teaching approach to understand how viruses are encrypted (encoded – we use the two words interchangeably), and how to reverse-engineering the process of encrypting, it also introduced some techniques you can use in any program most importantly Scripts like in Perl, VBScript, JavaScript or web frameworks like ASP.

The first look at an encrypted virus might be not easy, but knowing what’s going inside really will give you the best vision about those viruses and how they works, in fact the VBScript viruses decrypt them selves before they can be executed, so that hackers must include the logic of decryption with their virus, and here comes the weakest point in those viruses.

Ajax has the potential to revolutionize the Internet as we know it, but with this potential comes equally dangerous new security threats. Ajax Security exposes the minefield of security vulnerabilities inherent in the Ajax framework and provides a guide for developers to safely navigate through it and create a secure application.

Each chapter begins with a myth about Ajax security which is then debunked. Throughout the book, you will find case studies of actual exploited Ajax vulnerabilities to illustrate key points. The authors also include specific recommendations for securing Ajax applications for each of the major Web programming languages (.NET, Java, and PHP) as well as for the popular new language, Ruby on Rails.

Whether you're a security practitioner, developer, manager, or administrator, this book will give you the deep understanding necessary to meet today's security challenges–and anticipate tomorrow's. Unlike most books, The Craft of System Security doesn't just review the modern security practitioner's toolkit: It explains why each tool exists, and discusses how to use it to solve real problems.

After quickly reviewing the history of computer security, the authors move on to discuss the modern landscape, showing how security challenges and responses have evolved, and offering a coherent framework for understanding today's systems and vulnerabilities. Next, they systematically introduce the basic building blocks for securing contemporary systems, apply those building blocks to today's applications, and consider important emerging trends such as hardware-based security.

In the five years since the first edition of this classic book was published, Internet use has exploded. The commercial world has rushed headlong into doing business on the Web, often without integrating sound security technologies and policies into their products and methods. The security risks–and the need to protect both business and personal data–have never been greater. We've updated "Building Internet Firewalls" to address these newer risks.

What kinds of security threats does the Internet pose? Some, like password attacks and the exploiting of known security holes, have been around since the early days of networking. And others, like the distributed denial of service attacks that crippled Yahoo, E-Bay, and other major e-commerce sites in early 2000, are in current headlines.

Firewalls, critical components of today's computer networks, effectively protect a system from most Internet security threats. They keep damage on one part of the network–such as eavesdropping, a worm program, or file damage–from spreading to the rest of the network. Without firewalls, network security problems can rage out of control, dragging more and more systems down.

Part of the new Cracking the Code Series, Peer to Peer Application Development takes a look at the code behind Napster-style Peer to Peer (P2P) applications. This book covers complete web application with design specifications, flow diagrams and source code with line-by-line explanations. You'll build a completely functional P2P application and clients with audio/video streaming, chat and wireless capabilities. Other topics covered include building the P2P Server, building clients in C# and Java, XML data, wireless integration and more!

    *  Technology professionals seeking higher-paying security jobs need to know security fundamentals to land the job-and this book will help
    * Divided into two parts: how to get the job and a security crash course to prepare for the job interview
    * Security is one of today's fastest growing IT specialties, and this book will appeal to technology professionals looking to segue to a security-focused position
    * Discusses creating a resume, dealing with headhunters, interviewing, making a data stream flow, classifying security threats, building a lab, building a hacker's toolkit, and documenting work
    * The number of information security jobs is growing at an estimated rate of 14 percent a year, and is expected to reach 2.1 million jobs by 2008

Handbook of Digital and Multimedia Forensic Evidence presents an overview of computer forensics perfect for beginners. This volume will serve as a foundation and guide for: (a) students considering a career in this field; (b) the law enforcement investigator assigned to work cybercrimes; (c) establishing training programs for forensic examiners; (d) the IT professional; (e) the veteran forensic examiner; (f) the prosecutor faced with litigating cybercrime cases brought before a trier of fact. A distinguished group of specialist authors have crafted chapters rich with detail yet accessible for readers who are not experts in the field. Tying together topics as diverse as applicable laws on search and seizure, investigating cybercrime, and preparation for courtroom tesitmony, Handbook of Digital and Multimedia Forensic Evidence is the ideal overall reference for this multi-faceted discipline.

Never before have there been so many laws designed to keep corporations honest. New laws and regulations force companies to develop stronger ethics policies and the shareholders themselves are holding publicly traded companies accountable for their practices. Consumers are also concerned over the privacy of their personal information and current and emerging legislation is reflecting this trend. Under these conditions, it can be difficult to know where to turn for reliable, applicable advice.

The sixth edition of the Information Security Management Handbook addresses up-to-date issues in this increasingly important area. It balances contemporary articles with relevant articles from past editions to bring you a well grounded view of the subject. The contributions cover questions important to those tasked with securing information assets including the appropriate deployment of valuable resources as well as dealing with legal compliance, investigations, and ethics. Promoting the view that the management ethics and values of an organization leads directly to its information security program and the technical, physical, and administrative controls to be implemented, the book explores topics such as risk assessments; metrics; security governance, architecture, and design; emerging threats; standards; and business continuity and disaster recovery. The text also discusses physical security including access control and cryptography, and a plethora of technology issues such as application controls, network security, virus controls, and hacking.

As more and more software becomes available and computers increase in complexity, problems with performance are certain to arise. If your PC is misbehaving, don’t let it ruin your day. This book explains how to make the best out of your PC by using PC Pitstop Optimize, which cures many PC “sicknesses” without the need for upgrading or replacing your existing PC. As bonus material, this book also includes loads of information that will help you troubleshoot more serious problems and even add new capabilities to your computer.

Anyone who uses the Internet, email, or a computer should read this book.

Whether you are a self-proclaimed computer illiterate or a life-long IT professional, this book will give you the tools and understanding to free your computer of clutter and optimize your PC so it can operate at its fullest potential.