Writing a Dynamically built HTML to a file in ASP.NET 4.0
<p>I have a web form which takes in user information. The value of various text boxes is used to build a html file. I write this html to a file( with specific name) and then prompt user to Save this file.This html is used for creating outlook email signatures. Currently I have this html within the application.This has been deployed to the server. I had to set write permission on this file for all users for it to work.</p>

<p>Are there any security risks? What happens if multiple users access this applications and write to the file at the same time.</p>
