depends on the jurisdiction. In Germany this is a grey area or outright forbidden depending on the case, and this dump apparently contains numbers from numerous jurisdictions.
Also, needlessly to say someone who gives facebook their phone number for verification purposes does likely not expect that the data is leaked or sold without their permission.
> needlessly to say someone who gives facebook their phone number for verification purposes does likely not expect that the data is leaked or sold without their permission.
Sadly, this isn't the case anymore. People absolutely expect companies to sell or leak every last bit of PII data they have on all their customers now.
Also, needlessly to say someone who gives facebook their phone number for verification purposes does likely not expect that the data is leaked or sold without their permission.