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is it possible to hack(access the code and change it) silverlight app <br />
e.g:<br />
i'm using silverlight app to authenticate log in to my program,<br />
is it possible for some one to modify the code in my silverlight application and access my program illegally??<br />
<br />
if yes,can any one give me some methods or protocols to avoid that?<br />
note:i have to use silverlight technique for UI and im using janrain api for login... &nbsp;
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is it possible to hack(access the code and change it) silverlight app 
e.g:
i'm using silverlight app to authenticate log in to my program,
is it possible for some one to modify the code in my silverlight application and access my program illegally??

if yes,can any one give me some methods or protocols to avoid that?
note:i have to use silverlight technique for UI and im using janrain api for login...  

Hacking silverlight application

Web development includes all aspects of presenting content on intranets and the Internet, including delivery development, protocols, languages and standards, server software, browser clients, databases and multimedia generation.

Web Development

Web browsers are applications used primarily to display documents, files and media from the Internet, identified by a Uniform Resource Identifier (URI) that can be a page, image, video or other file. Some browsers require the use of add-ons or extensions to safely render the information they receive; others have systems built into them to perform the same functions.

Web Browsers

A vulnerability is a weakness which allows an attacker to reduce a system's information assurance. Vulnerability is the intersection of three elements: a system susceptibility or flaw, attacker access to the flaw, and attacker capability to exploit the flaw. To exploit a vulnerability, an attacker must have at least one applicable tool or technique that can connect to a system weakness, known as the attack surface. Vulnerability management is the cyclical practice of identifying, classifying, remediating, and mitigating vulnerabilities. Other vulnerabilities include security risks, security defects and constructs in programming languages that are difficult to use properly.