Does IMsecure encrypt all my chat sessions?
Encrypts instant messaging between any two IMsecure Pro-protected clients that are connected to the same IM service, even if the IM clients are different (for example, IMsecure Pro can encrypt messages between Yahoo! Messenger and Trillian). The free version, IMsecure, will encrypt messages sent from one IM account of the user’s choice while the Pro version will encrypt on all services.