Authorities are investigating whether hackers accessed company databases, though a source says there's no proof that fan accounts were compromised.
A shadowy group is attempting to sell user payment details and other data for $500,000 via an illegal online marketplace.
A week after she sued a spurned fan who allegedly leaked her unfinished album, the man agreed to a court order requiring him to name anyone he shared it with.
Pixel software used to serve ads to the ticketing company's customers facilitated lengthy skimming operation.
