If you're a Skype user, then you probably ought to know about this: Skype 5.8 for Mac, as well as similar versions for Windows, Linux, and Windows Phone, has a bug that unintentionally shares instant messages with other contacts on a user's friend list.
Skype describes the bug as follows:
Based on recent Skype customer community posts and our own investigation over the past couple of days, we have identified a bug that we are working hard to fix. This issue occurs only when a user's Skype client crashes during a Skype IM session, which may in some cases result in the last IM entered or sent prior to the crash being d
