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"  How Vulnerable Is U.S. Infrastructure to a Major Cyber Attack?    National security officials say that cyberspies hacked their way into the U.S. grid and left behind software programs that could disrupt the system.Four Ways to Fight Back Against Cyber Attacks    Your webcam, cellphone, Web browsers, and personal e-mails are all vulnerable to attack from thieves in cyberspace. This story gives four ways to fight back.Top 3 Threats and Countermeasures From the Coming Cyberwar: Glossary    Six cyberwar terms to know.How Hackers Could Take Down a Natural Gas Pipeline  Much of America&amp;#039;s infrastructure is computer-controlled, and therefore subject to hacking. Here is a look at how an attack on a natural gas pipeline could occur.Hack Attack on Tibet Groups Could Hint at China&amp;#039;s Anti-U.S. Tactics    Geopolitical clashes are often fought in cyberwar, as attacks on Tibetan rights groups have found. Here are examples of attacks and how groups and individuals can safeguard against them.The Coming Cyberwar: Inside the Pentagon&amp;#039;s Plan to Fight Back    With U.S. military networks under daily attack, PM visited the new Air Force Cyber Command to find out how America is gearing up for a digital fight.When Hackers Attack: Practicing Cyber Security at Home    Here, a behind-the-scenes look at how hackers are unearthing the private details of our lives by attacking our web browsers, cellphones and personal electronics.Who&amp;#039;s Stealing Your Identity?    Global identity thieves may know their way around your computer better than you do. Welcome to the scary new world of zombies, RATs, Trojan horses and evil twins.How to Make Your Webmail Secure    Worried about how secure Web-based e-mail is? Here&amp;#039;s what you can do to protect against hackers and digital snoops.6 Big Questions on Russian-Georgian Cyberwar for RBNexploit&amp;#039;s Jart Armin    Russia attacked Georgia&amp;#039;s websites during last year&amp;#039;s invasion. We talked with RBNexploit&amp;#039;s digital-security blogger, Jart Armin, about cyber-criminal activity at the time.Georgia&amp;#039;s Digital Defense Against Russia: PODCAST    This podcast looks at the Georgia\u00D0Russia conflict and countermeasures and examines why the Pentagon shut down the Air Force Cyber Command.Sandia Labs&amp;#039; Red Team Is a Legal Hacker Group    At its customers&amp;#039; invitation, the Sandia Red Team has successfully hacked 35 out of 35 computer sites.Counterfeit Chips Raise Big Hacking, Terror Threats, Experts Say    Counterfeit chips can be put into the computers that run everything from the Air Force to the Department of Energy. It&amp;#039;s a hardware threat with big security implications.     KEEP UP WITH POPULAR MECHANICS * FOLLOW US: Popular Mechanics is Now on Twitter!  * FRIEND US: Find PM on Facebook   "^^<http://www.w3.org/2001/XMLSchema#string>
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