According to a new SEC filing by Live Nation Entertainment, a security breach has put untold troves of personal data at risk. Live Nation is the owner of the ubiquitous ticket-selling platform Ticketmaster, and that platform appears to “primarily” be the issue, according to the filing. “On May 20, 2024, Live Nation Entertainment, Inc. (the “Company” or “we”) identified unauthorized activity within a third-party cloud database environment containing Company data (primarily from its Ticketmaster L.L.C. subsidiary) and launched an investigation with industry-leading forensic investigators to unde…