Source: Proofpoint, May 2008
From the press release:
In its fifth-annual study of outbound email and data loss prevention issues, Proofpoint, Inc. found that large enterprises continue to incur risk from–and take action against–information leaks over outbound email, as well as newer communications media such as blogs, message boards, media sharing sites and mobile devices.
41% of Large U.S. Corporations Employ Staff to Read Employee Email; 26% Terminated Employees for Email Policy Violations in the Past Year
11% Of U.S. Companies Disciplined Employees for Improper Use of Blogs/Message Boards; 13% for Social Network Violations; 14% for Improper Use of Media Sharing Sites