I'm sorry that you did not notice the separate area called "Previous Protect Events" that could be accessed from the Security community. I now moved all related posts and presentations to the general events section in order to reduce the number of different locations.
You may recall that in 2016 the HPE Software business was sold to Micro Focus. I tried to secure all past events' presentations that were run under the HPE branding, but there may be some that were lost. Here the presentations that can still be accessed: