The Federal Trade Commission alleged Ticketmaster colludes with scalpers and engages in “bait-and-switch” pricing — leading to higher prices for concert-goers.

US regulators have sued Ticketmaster and its parent company Live Nation, accusing the companies of employing illegal ticket resale tactics and costing consumers millions of dollars in the process.

The FTC says Ticketmaster is also aware of ticket brokers regularly bypassing security measures by creating accounts using proxy IP addresses and, beyond that, offers tech support to brokers through ...