Checking if user has changed cookie value, manually

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I am busy with a login system for my project.

Just for an extra step to the security.. How can I check/detect if a user has manually changed a cookie value?

Is there some easy way of doing this? Or do I have to set an extra Session variable and match it up with that? With this being said, is a normal ASP.Net Session traceable by the browser? And viewable to the user?

Thanks.

4 Answers
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