Hackers can manipulate outdated algorithms to give two very different documents the same digital signature.
Why we love the machines we shouldn't.
Fattened voter databases will be among the 2008 presidential race's most enduring legacies.
Researchers mull the next step in spam deterrents.
Data mining sheds light on what makes news.
Prototypes bring practical nanotube devices closer
We need a new language for artificial intelligence.
Vivek Pai’s new method for storing Web content could make Internet access more affordable around the world.
Adam Cheyer is leading the design of powerful software that acts as a personal aide.
Stuart Parkin is using nanowires to create an ultradense memory chip.