This week brought an announcement of a very big hack: Lockheed Martin said that it had thwarted unauthorized entry to its computers by apparently the same hackers who got the secret of the RSA SecureID tokens, cards that generate random numbers in sync to authenticate users of computer systems. According to Lockheed, no harm was done because of their system security features.
That is, of course, the smart thing to say, whether it is true or not.
Emptywheel notes that other companies seem to be less willing to talk. She also notes that Lockheed Martin has its fingers in many pies, including NSA. I'll add another: Lockheed Martin runs Sandia National Laboratories, designers of the non-nuclear systems for nuclear weapons.