"Warner Bros.' also approaches the same technique of confidentiality and ignorance when it comes to their own security vulnerabilities," SwaggSec said. "When we hacked their intranet, we were surprised to see their IT department's well documented 'confidential' data about the 'critical vulnerabilities' on their servers and sites. However, their IT department's ignorance to fix any of the vulnerabilities they were aware about granted us complete access to their servers."

The group continued to taunt Warner Bros. on Twitter later on Sunday "So Warner Bros you going to fix your vulns now that we've hacked you?"

Efforts to reach Warner Bros. were not immediately successful. China Telecom officials did not have an immediate comment.