As part of the 2020 Virtual Conference, we have added an additional field to your member account on the web site called "Contact Sharing". This field helps us balance the needs of members for privacy and the need for Conference presenters to have follow up contact info. The default setting is to allow us to provide this information to presenters upon request. As a reminder, HPC Pros does not sell your contact information.
This post walks you through how to opt out of it.
For those of you in the TL;DR crowd, here's the quick and dirty procedure: