Last year, StubHub officials noticed a slew of unauthorized transactions, quietly refunded affected customers, and brought in law-enforcement officials. Authorities are today expected to make arrests involving a huge cyberfraud ring in which thieves hacked into more than 1,000 StubHub accounts, reports the AP. The StubHub site itself wasn’t hacked, according to a company spokesman: Instead, cyberthieves broke into other websites and pilfered customer data, then used passwords and login info to make fraudulent ticket purchases for events through StubHub.