I know some friends in my buddy lists will not accept any file or link from their friends for security reasons. I don’t bother when a friend decline my request and i can understand that it is why cause they scare to be hacked.
Good news is if you have Norton Antivirus 2007 or 2008 or Norton Internet Security 2007 or 2008 you can stop being paronoid and start to accept files from your friends. All files will be scanned by Norton for virus or other malicious chits.
It is only for windows users and you should be using Yahoo! Messenger 9 +
Since i stopped using Norton Antivirus product years ago cause it thinks it is owner of my computer but hey it is my computer and i want to control it, i just scan every file i received with my current virus program before open it.