The Yahoo! breach was the subject of a recent security breach, where personal information was stolen and presumably published online and/or sold to be used later to attack other online accounts. As part of this analysis, I wanted to identify both public sites and dark web sites. In this slide show, well look at public sources for this valuable information. In a follow-up slide show we’ll look at dark web sources in which criminals use this valuable data to identify and locate individuals.”]
Source: https://www.darkreading.com/cloud/8-public-sources-holding-private-information