Some friends of mine are heavy users of microsoft messager/yahoo messager. they want me to use these tools to join them online...
my questions are:
1) under *nix, what corresponding tools can i use to chat with my friends using microsoft/yahoo messagers?
2) which protocols/ports does a messager use?
3) is there any "secure" messagers available out there? i guess a cracker can spoof and get everything my friends and i chat about if he/she is technically savvy and persistent... so i think a secure messager which encrypts my conversation (just like what putty does) would be great...