The Federal Trade Commission accused a shadowy group of flooding Ticketmaster with fake accounts to purchase and resell tickets to concerts by Taylor Swift, Bruce Springsteen and other top artists.

The U.S. Federal Trade Commission filed a lawsuit Monday against a ticket broker, alleging the company used illegal tactics to exceed purchasing limits for popular events and then resold tickets at si...

The suit charges the operation was able to bypass Ticketmaster’s security protections by a number of ways, including using fictitious and third-party Ticketmaster accounts; using thousands of virtual...