On Yahoo messenger, is there any way to be invisible to only certain contacts and show as on to others?

Yes, you'd have to set the Stealth settings separately.

Click on each contact's name in your list, scroll to 'Stealth settings' and set whether you want the person to see you or not

Yes. What you'd do is right-click the person you want to be invisible to. Then you go down to stealth settings and then select to appear permanently off-line to them.

I see a development. From what you assert it form of feels this "somebody" knew each thing what you have been doing in Yahoo Messenger? if so then this tells me he in all possibility had get admission to on your Yahoo Messenger log information on that computing device. those log information are saved on your gadget and many times are in readable text textile format. the only question is, does this somebody have get admission to on your computing device without postpone (meaning, can has he used your computing device)? because of the fact if he has the all he had to do grew to become into bypass into your Yahoo Messenger folder and reproduction the log information and study them to understand precisely who you have been speaking to and what you adult men have been doing (e.g. webcamming, and so on). yet another possiblity is he used has a software this is sitting on your computing device that captures this log document and sends it to him. and ultimately the different possiblity is a keylogger. given which you point out a gaggle of issues approximately Messenger it sounds to me he basically have been given get admission to on your log information. ** yet another possiblity nonetheless is he basically asked your pal who knew all the small print what you have been doing OR have been given get admission to to her log information.

open your messanger.

left-click on your friends name.

click on "you appear ---------------". and choose one of them.

goodluck