The U.S. charged seven hackers linked to the Iranian government with executing large-scale cyberattacks on dozens of banks as well as a small dam outside New York City -- intrusions that law enforcement officials said reached into America's infrastructure and disrupted the nation's financial system.
The moment a U.S. official pressed a computer key Tuesday, dozens of security experts who gathered in an underground control room girded themselves for a cyberattack -- a drill meant to thwart the kinds of intrusions that have recently crippled health networks and retail giants.
Authorities are investigating the source of a cyber attack against four New Jersey Internet gambling sites by a hacker who threatened more of the same unless a ransom was paid using the online currency Bitcoin.