[LaurentS]

Same here. I had never heard of them. Turns out they're a YC'15 startup (https://www.apollo.io/company/). There are no passwords in the data they lost according to HIBP. They seem to collect personal data from various sources and help other companies increase sales.

[nabnob]

So not only do we have to worry about websites we actually use being compromised, but we also have to worry about these sketchy third-party companies that have purchased our data being hacked.