As more companies come out of the closet about their Internet security being compromised, still more start to admit it. But many (perhaps most) don't even know. Fortunately, there is a way the public can get a clue even about those companies.
Nicole Perlroth wrote for the NYTimes 20 February 2013 that corporations try to hide successful cracking of their Internet security:
Most treat online attacks as a dirty secret best kept from customers, shareholders and competitors, lest the disclosure sink their stock price and tarnish them as hapless.
However, as some companies come out of the closet about this (Twitter, Facebook, Apple, etc.) and such
revelations become more common, the threat of looking foolish fades and more companies are seizing the opportunity to take the leap in a crowd.
“There is a ‘hide in the noise' effect right now,” said Alan Paller, director of research at the SANS Institute, a nonprofit security research and education organization. “This is a particularly good time to get out the fact that you got hacked, because if you are one of many, it discounts the starkness of the announcement.”
Now here's the interesting part: