A ticket broker escaped claims alleging its use of bots to buy up event tickets on Ticketmaster LLC’s website violated copyright law and a computer fraud statute.

Ticketmaster alleged that Prestige Entertainment Inc. used illegal software called bots to buy “tens of thousands” of tickets for the hit Broadway production “Hamilton,” as well as other live events in New York. Ticketmaster alleged that Prestige infringed its copyrighted webpages, illegally bypassed security measures, and accessed its website without authorization.

The U.S. District Court for the Central District of California dismissed the copyright infringement and unauthorized access claim. But it allowed a...