In Digital Combat, U.S. Finds No Easy Deterrent – NY Times

Inside the National Security Agency, which secretly scours overseas computer networks, officials have debated whether evidence of an imminent cyberattack on the United States would justify a pre-emptive American cyberattack…

Software Firms Fear Hackers Who Leave No Trace – NYTimes.com

Software Firms Fear Hackers Who Leave No Trace – NYTimes.com.

The crown jewels of GoogleCisco Systems or any other technology company are the millions of lines of programming instructions, known as source code, that make its products run.