Charles Schumer

Senate Banking Committee member Sen. Charles Schumer, D-N.Y., questions Federal Reserve Chair Janet Yellen during the committee's hearing on Capitol Hill in Washington, Thursday, July 16, 2015. (AP Photo/Susan Walsh)

The latest cyberattack on a major American business has U.S. Sen. Chuck Schumer urging his colleagues to take action to prevent future data breaches. 

Schumer, D-N.Y., wants Congress to vote on cybersecurity legislation, which he believes will help protect companies against attacks and data breaches. 

His call for action follows the revelation that Excellus Blue Cross Blue Shield uncovered a data breach dating back to 2013. The health insurance company, which is based in upstate New York, says the attack may have exposed personal data of 10 million clients. 

"The fact that this data breach was not discovered for 19 months just goes to show how sophisticated online hackers are and how much work we have to do when it comes to protecting our personal information," Schumer said. 

The attack on Excellus is the latest involving a major corporation. JP Morgan, SONY and Target have all dealt with data breaches. 

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In the case of Excellus, Schumer said the insurance firm hired cyber security experts to assess its network security. During their review, the experts discovered the company was hacked in December 2013. 

Excellus reported the incident to the FBI. Schumer said it's unknown whether the hackers have used any client information exposed in the breach. 

"So I am urging my colleagues in Congress to strengthen consumer cyber protections and require companies to notify their customers if there has been a breach of their personal information in a timely manner so they can take action to ensure they are not the victim of identity theft," Schumer said. 

"In addition, we need intelligence and law enforcement agencies to work together to share information of potential cyber threats to prevent another attack. When it comes to the personal information of New Yorkers — be it their Social Security number, their health records or financial information — we can never be too safe." 

According to The Hill, a Washington D.C.-based publication, Senate Intelligence Committee Chairman Richard Burr doesn't expect a vote on the cybersecurity bill until October

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