??? The purposes of the book are to raise awareness, demonstrate attacks, and offer solutions
for Web 2.0 security risks. This introduction will cover some basics on how Web 2.0
works, to help ensure that the chapters in the rest of the book are clear to all individuals.
What Is Web 2.0?
Web 2.0 is an industry buzz word that gets thrown around quite often. The term is often
used for new web technology or comparison between products/services that extend
from the initial web era to the existing one. For the purposes of this book, Web 2.0
xx Hacking Exposed Web 2.0
addresses the new web technologies that are used to bring more interactivity to web
applications, such as Google Maps and Live.com. Technologies such as Asynchronous
JavaScript XML (AJAX), Cascading Style Sheets (CSS), Flash, XML, advanced usage of
existing JavaScript, .Net, and ActiveX all fit under the Web 2.0 technology umbrella.
While some of these technologies, such as ActiveX and Flash, have been around for
awhile, organizations are just starting to use these technologies as core features of
interactive web sites, rather than just visual effects.
Additionally, Web 2.0 also includes a behavioral shift on the web, where users are
encouraged to customize their own content on web applications rather than view static/
generic content supplied by an organization.
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