Teacher:In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Teacher: Now, understand the problem? Solve this instance: The HBO hack may have been worse than the initial leaks of a few unaired TV show episodes suggested. A security company hired by HBO to scrub search results for the hacked files from search engines has told Google that the hackers stole “thousands of Home Box Office (HBO) internal company documents.” 
  
 The disclosure came as part of a DMCA take-down notice sent to Google Tuesday to force the search engine to take down links to the leaked files. The take-down notice also detailed that the hackers did away with “masses of copyrighted items including documents, images, videos and sound.” 
  
 The company in question, IP Echelon, is frequently being used by HBO to remove links to infringing material from Google. An HBO spokesperson declined to comment on the take-down notice and the nature of any files stolen by the hackers when contacted by Variety Wednesday “due to an ongoing investigation.” 
  
 Word of HBO getting hacked first broke Monday morning, when the hackers approached media outlets with the news that they had broken into HBO’s networks and released episodes of “Ballers,” “Insecure,” and “Room 104” as well as the script for an upcoming episode of “Game of Thrones.” 
  
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 Also released by the hackers: Two episodes of “Barry,” the hit man comedy starring Bill Hader that is not scheduled to air until 2018 on the network. 
  
 The hackers appear to have also leaked personal information of a senior HBO executive. That information, published online in a text document, contains access information to dozens of online accounts, including paid newspaper subscriptions, online banking, and personal health services. At least one of these accounts may also have given the hackers access to the executive’s work email. 
  
 The perpetrators of the hack have claimed that they were able to access some of HBO’s key network infrastructure, and steal a total of 1.5 terabyte of data, and have suggested that they will release additional information in the near future. An image file published as part of the leaks seems to corroborate at least the first part of that claim, as it appears to show screenshots of HBO’s internal administration tools, listing employee names and email addresses and their functions within the organization. 
  
 Thousands of potentially sensitive internal documents, employee data, and a possible access to internal corporate email: All of this brings back memories of the Sony hack. Back in 2014, a group of hackers that is thought to have been backed by North Korea broke into the networks of Sony Pictures. The group subsequently released tens of thousands of emails, as well as scripts and video files, contributing to the ouster of Sony Pictures chief Amy Pascal. 
  
 HBO acknowledged the hack on Monday, and said that it was working with law enforcement and private firms to remedy the situation. “Data protection is a top priority at HBO, and we take seriously our responsibility to protect the data we hold,” the company said in a statement. ||||| FILE - In a Thursday, May 11, 2017, file photo, HBO CEO Richard Plepler attends a screening of HBO's "The Wizard of Lies" at the Museum of Modern Art, in New York. HBO, which acknowledged Monday, July... (Associated Press) 
  
 FILE - In a Thursday, May 11, 2017, file photo, HBO CEO Richard Plepler attends a screening of HBO's "The Wizard of Lies" at the Museum of Modern Art, in New York. HBO, which acknowledged Monday, July... (Associated Press) 
  
 NEW YORK (AP) — HBO, which acknowledged Monday that hackers had broken into its systems and stolen "proprietary information," now says the attackers likely haven't breached the network's entire email system. 
  
 In a Wednesday email to employees, CEO Richard Plepler wrote that "we do not believe that our email system as a whole has been compromised." 
  
 He added that a review continues, and said HBO is hiring an outside firm to help employees monitor their financial accounts. 
  
 Purported hackers said in email that they'd accessed HBO's internal network and email system and then posted stolen information online. An archived version of the named website appeared to have links to downloadable episodes for several HBO shows, including "Insecure" and "Ballers," and what it said was a link to "script & film" to two "Game of Thrones" episodes, including an upcoming one. 
  
 AP did not test the links. The site was not loading Wednesday afternoon. 
  
 But HBO appeared to indirectly confirm that this website linked to potentially sensitive internal material including "documents, images, videos and sound." 
  
 On Tuesday, a company called IP-Echelon filed a report with Google on behalf of HBO, noting that the named website "shares thousands of Home Box Office (HBO) internal company documents." IP-Echelon Pty Ltd. regularly files such copyright-infringement notices on behalf of large media entertainment companies, including HBO. 
  
 Federal law requires internet companies like Google to remove links to sites that infringe copyright once they receive such notifications. Google routinely forward such notices to the longstanding public-interest repository Lumen, formerly known as Chilling Effects, once it has complied. 
  
 A Google spokeswoman did not respond to requests for comment. An HBO spokesman declined to comment on the takedown notice. Messages left with IP-Echelon were not answered. 
  
 Previous hacks have created significant repercussions in Hollywood. Sony struggled in the aftermath of its huge hack in 2014, which leaked embarrassing employee emails as well as films. 
  
 But earlier this year, when another hacker held stolen episodes of new Netflix shows for ransom, Netflix apparently refused to pay. When the episodes appeared online, the company merely shrugged. ||||| The company is reeling from a sophisticated cyberattack that potentially compromised seven times the amount of data stolen in the Sony hack as the FBI investigates potential culprits. 
  
 On July 27, Richard Plepler's worst corporate nightmare unfolded. The HBO CEO learned that his company's network had been breached by an apparently coordinated cyberattack that experts explained could expose a staggering 1.5 terabytes of data. That would be roughly seven times the size of the epic 2014 hack of Sony Pictures. 
  
 The attack was sophisticated, insiders tell The Hollywood Reporter, targeting specific content and data housed in different locations, suggesting multiple points of entry. Even more chilling, there was no ransom demand, say sources, leaving the motive in question and raising the specter that video footage, internal documents or even email correspondence could be leaked. 
  
 Two days later, HBO sent an alarming email on a Saturday to its 2,500-plus employees, notifying them that the company had been hit, followed by a second email warning staff not to open suspicious emails. On July 30, hackers going by the name of little.finger66 boasted to the media about pulling off "the greatest leak of cyber space era" [sic]. As a teaser, they provided a link to a script for an Aug. 6 episode of Game of Thrones and promised much more. At the same time, unaired episodes of Ballers and Room 104 began surfacing online. 
  
 To put in context the 1.5 terabytes — or 1,500 gigabytes — claim, in the Sony case, about 200 gigabytes of data was released online, a damaging deluge that brought the studio to its knees and led to the ouster of then co-chair Amy Pascal. "A traditional business-grade DSL link would take about two weeks at full blast to exfiltrate that much data," says Farsight Security CEO Paul Vixie, noting that a finished Blu-ray is about 30 gigabytes. "If not for video and sound, a corporation the size of HBO might fit [entirely] in a terabyte, including all the email and spreadsheets ever written or stored." 
  
 Adds Ajay Arora, CEO of security firm Vera, "The entire Library of Congress is estimated to contain 10 terabytes of print content. As such, it's hard to believe that video and/or audio are not part of what was stolen. It will be interesting — and terrifying to HBO and their parent, Time Warner — to see what comes out." 
  
 Sources say HBO is working with the FBI and cybersecurity firm Mandiant, which led the forensic investigation on the Sony hack (ironically, Mandiant also was targeted by hackers around the same time as the HBO breach). The FBI and Mandiant declined comment, and HBO wouldn't elaborate beyond a statement acknowledging the hack. 
  
 At press time, it was unclear what exactly the HBO attackers had taken, even to those investigating. In a July 31 email to staff, Plepler characterized the stolen items as "proprietary information, including some of our programming." Insiders say hackers pilfered a combination of media-rich data and text. Though full or partial episodes of Game of Thrones — the crown jewel of the HBO lineup — would be problematic, it's the prospect of stolen text that is far more alarming. 
  
 "At 1.5 terabytes, it could be a whole block of TV, or worse, it could be emails, financial documents, employee or customer information," says Erik Rasmussen, a former deputy prosecuting attorney and special agent with the Secret Service who now works at the cybersecurity firm Kroll. "The fact that you have law enforcement and a [cybersecurity] firm involved most likely means this will be a very large incident for HBO." 
  
 Hollywood has been under siege from cyber criminals. In the past year, at least six studios and talent agencies have been hit with extortion attempts, including Netflix, UTA and WME-IMG. Netflix balked at ransom demands, and the collective known as TheDarkOverlord released 10 episodes of Orange Is the New Black ahead of its June debut. 
  
 Privately, security experts say the HBO hack appears to be far more vicious. One insider calls it "nefarious" because it was targeted to specific content and data (as with Sony) and not simply a trawling sweep (as was the case with the Orange Is the New Black heist). 
  
 And the HBO hack comes at a delicate time for Time Warner. In October, AT&T agreed to buy the company for $85 billion. It's no secret that HBO is the star performer of the portfolio, so a sprawling hack could impact the ultimate sale price. 
  
 "It's fair to draw parallels to the Yahoo hack in this case," says Hemanshu Nigam, a former federal prosecutor of online crime and onetime chief security officer of News Corp. In that case, at least 500 million customer accounts were compromised, leading Verizon to extract a $350 million discount in its $4.5 billion purchase of the online giant. 
  
 HBO is taking a proactive approach. Plepler called for employees to be notified even before news of the hack broke. "It was one of the best examples of how to react to a crisis and communicate to your employees," says Nigam. "I've never seen it happen this fast." (With Sony, it took then-chairman Michael Lynton 12 days to email employees about the status, but that’s because there was no clarity about the nature of the attack until then, and the studio was in largely unchartered waters at the time.) 
  
 Still, the scope of the breach has many in Hollywood once again holding their collective breath. Says Rasmussen, "The question now is what do they have, who did this, and what was the motive?" 
  
 A version of this story first appeared in the Aug. 2 issue of The Hollywood Reporter magazine. To receive the magazine, click here to subscribe. |||||
Student:
The HBO cyberattack appears to be worse than originally thought. A security company hired by the network tells Google that the hackers stole "thousands of ... internal company documents" belonging to HBO as well as "masses of copyrighted items including documents, images, videos and sound," Variety reports. The company, IP Echelon, is in the process of removing search results for the hacked files, and the revelation came as part of a take-down notice sent to Google ordering it to remove links to the leaked files. Sources tell the Hollywood Reporter as many as 1.5 terabytes of data could have been exposed by the breach, which would make the hack worse than the 2014 Sony hack. So far, episodes of Ballers, Insecure, Room 104, and Barry (the last of which has not aired yet) have been released by the hackers; they claim to also have at least one Game of Thrones script. The personal information of a senior HBO executive, including access to online banking and other online accounts, also appears to have been leaked. Other employee data and possibly even customer data is potentially vulnerable, leading Variety to also compare the attack to the Sony hack. Hackers have not asked for any ransom yet. HBO's CEO reassured employees Wednesday that it was unlikely the entire email system had been breached, the AP reports.