Currently, when a new conference is created and the “Call for Abstracts” workflow is enabled, it also comes with the ability to generate a “Book of Abstracts” (XELATEX needs to be configured).
This Book of Abstracts (BOA) by default includes the names and email addresses of the submitter as the “corresponding author” by default, with the option to change this to “none” or “speakers.” As the BOA cannot be set to “protected” and be limited to registered conference participants only, this can lead to unintentional information disclosure (email address scraped by bots) and be a cause of spam. So, I’d like to first suggest that the default be changed to “none” (which seems simple enough - see pull request below) and/or maybe making the BOA Protectable and maybe protected by default (this one’s beyond my skills, sorry).