While Sheldon Adelson‘s Sands websites have been restored after a damaging hacking attack (pictured), a recently posted video shows that the intrusion may have breached much more data than previously suspected. The 11-minute video, uploaded to YouTube by the Anti WMD Team, appeared to show various administrator passwords, including those for accessing slot machine systems and player information at the company’s Bethlehem, Pennsylvania location. Also displayed was a diagram of the company’s internal networks.

“We have now determined that the hackers reached at least some of the company’s internal drives in the US containing some office productivity information made up largely of documents and spreadsheets,” said spokesman Ron Reese in a statement. “We have seen the video and are continuing to investigate what, if any, customer or additional employee data may have been compromised as part of the hacking.”

He also admitted that Sands had not known about the further infiltrations until the video came to light.

The attack began last Monday when hackers rendered company e-mail servers unusable. The next day, the perpetrators were able to gain access to several of Sands’ websites, defacing their front pages and scrolling personal information of some of the gaming company’s Bethlehem employees across the screen.

Because so much data was siphoned off from the Sands’ Pennsylvania resort, IT experts now believe that the hackers used PASands.com as their launch pad.

“It’s fairly clear that Bethlehem was the access point. What’s less clear is whether the hackers got to other casino websites through Bethlehem or whether the company just shut everything down to stop them,” Daniel Lopresti, Professor of Computer Science at Lehigh University, told the Pennsylvania press.

“It’s sort of like breaking into a bank on the weekend,” he said. “Once they’re in, hackers pretty much have the run of the place until they’re discovered.”

The attack is seemingly a response to remarks made by the company’s outspoken CEO, Sheldon Adelson, about Iran last year. In a speech in New York, the billionaire casino magnate suggested that the US drop a nuclear bomb in Iran as a way to end that country’s nuclear ambitions.

Sands IT personnel were finally able to get the websites back up and running earlier this week, but employees remain fearful that their personal information will fall into the wrong hands. In response, Sands Bethlehem President Robert DeSalvio offered employees free identity theft monitoring services. “I know you are concerned about the potential exposure of your personal information. We are doing everything possible to address the situation with internet search engine providers,” he said in a message.

Cyber security experts believe that the hack was no easy task and would have taken months to complete, according to ABC News. Lopresti believes the fact that a major corporation’s websites were down for almost a week is “extraordinary.” But, while the hackers accessed more data than previously thought, Sands continues to assert that its “core operating systems have not been impacted.”

The video was also sent to the Associated Press by someone using the name Zhao Anderson, but was later removed from YouTube.

While four of the resort’s websites were knocked offline for almost a week, the incident hasn’t seemed to greatly affect the company’s bottom line. Since the hack began last Monday, Sands’ stock has risen 3.7%.

The FBI, Secret Service, and Nevada Gaming Control Board continue to investigate the matter. Reese declined to give any further information. “As a company, we’re probably never going to discuss that publicly,” he said. “We’ll leave that kind of detail up to law enforcement.”

The Las Vegas Sands Corporation and Adelson have been championing a crusade to ban online poker at the Federal level in the United States. Read more about the Coalition to Stop Internet Gambling.

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