Lucas Jackson/Reuters With a lack of leadership from the federal government, New York is one of the first states to implement new cyber regulations. The state is quietly working to prevent a major cyber attack that could bring down Wall Street's financial system. But even with the strictest cybersecurity regulations in the country, experts warn New York's efforts may still not be enough. NEW YORK — Five months before the 9/11 attacks, US Secretary of Defense Donald Rumsfeld sent a memo to one of his advisers with an ominous message. "Cyberwar," read the subject line.See the rest of the story at Business InsiderNOW WATCH: How to make America great — according to one of the three cofounders of Black Lives MatterSee Also:Banks are mulling a creative way to enforce gun control even if the US government doesn't make a single changeWise quotes on life, liberty, and the pursuit of happiness from every US presidentAll of the US presidents, ranked from tallest to shortest in one animationSEE ALSO: Top intelligence chiefs issue a dire warning about the Kremlin's ongoing efforts to influence the US DON'T MISS: The US's most secretive intelligence agency was embarrassingly robbed and mocked by hackers