If you were an "All Access Pass" registrant (or speaker) at (ISC)2 Security Congress, you are now able to access the recordings of the sessions that we have.
How to Access
Will the keynote video recordings be released at some point?
They will be and I'm checking with A/V to find out when those recordings will be made available.
Will there be any whitepapers and/or powerpoints?
Slides from Congress are posted. You would need to have been an "all access" pass holder in order to access these files.