This doesn't sound too good, I really wonder what type of security software these companies are using.
"hackers obtained personal information, including names and Social Security numbers, of some LANDESK employees and former Wavelink employees.” If I am right the Wavelink is a software installed on many hand scanner for bar codes. At least I see it a lot on them at work. I see it run on Windows CE and Mobile. http://www.wavelink.com/