Best secure session configuration ?

I don't think that the selected driver would make your session more or less secure. It's far more likely that your server configuration, your application, or implementation of authentication would cause security vulnerabilities. That said, you'll notice that CodeIgniter no longer has an option to encrypt the session, so I like to do that in my application. Even still, I would never put sensitive data in the session, but it's nice to know that prying eyes can't know the contents of the session.

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