What is the best way to safeguard a client secret in a JavaScript application in order to ensure it is inaccessible to unauthorized users? Specifically, I am working with an AngularJS SPA.
In my case, the client secret is a guid created during login and transmitted back to the client. It expires after 15 minutes of inactivity.
Given the sensitive nature of my secret key, how important is it for me to take precautions?
There are two important considerations to keep in mind:
First: It is impossible to completely hide sensitive information from someone who has access to the user's computer while they are logged in, or if the transmission between client and server is not secure (i.e., using https).
Second: If you are implementing security measures correctly, worrying about the validity of sensitive data should not be a major concern.
If you are generating unique identifiers each time for users rather than reusing them, and following proper security protocols, there should be minimal cause for worry.
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