There have been WAY too many over the years. I've supposedly been a victim of a bunch of them already. I'll start with some recent ones. Discuss and post breaches here.
A Security Breach Exposed More Than One Million DNA Profiles On A Major Genealogy Database
First GEDmatch, the DNA database that helped identify the Golden State Killer, was hacked. Then email addresses from its users were used in a phishing attack on another leading genealogy site.
https://www.buzzfeednews.com/article/pe ... na-privacy
GEDmatch confirms data breach after users’ DNA profile data made available to police
https://techcrunch.com/2020/07/22/gedma ... forcement/