Do not misunderstand this organization. ERIC is now contracted to 31 different states to help clean their registration rolls. The monthly collect the voter registration files from 31 states. They have access to all your private info that is in those records. They then send to each state the info on changes, like died, moved, and newly eligible.
States then are supposed to clean their rolls accordingly. Some do, some don’t. But they use the information so they know who is inactive, and they can cheat using those registered inactive voters.