UBS Warburg, 112
unauthorized instant messaging (IM), 19–27
electronic tools to detect, 20
extent of, 5, 8–11, 28
internal audit of, 20–26
pockets of non-use and, 26
United Kingdom, 12, 51–52, 79
U.S. Supreme Court, 50–51
unread messages, 44
user IDs, 16–17, 34, 44