WASHINGTON — American officials have concluded that North Korea was “centrally involved” in the hacking of Sony Pictures computers, even as the studio canceled the release of a far-fetched comedy about the assassination of the North’s leader that is believed to have led to the cyberattack.
As U.S. banks and retailers are barreling toward a 2015 deadline to replace magnetic-stripe credit and debit cards with more secure cards that come embedded with a microchip, researchers have announced a critical flaw in the card system.
