A recent survey of office workers revealed that USB sticks are frequently used to store company information regardless of corporate policy.
Delving into the research reveals that more than half of the respondents said their USB sticks were not encrypted, leaving the corporate information on them completely vulnerable if they are borrowed, lost or stolen.
This ComputerWorld article makes the link between this type of weak security and the vulnerability of governments and corporations to data breaches that end up on Wikileaks.