my Yahoo ID being hacked !

title says at all.

this morning, sign in with my backup YahooID and found my primary ID was ONLINE. Not sure,my id being hacked or something ? how to stop or shutdown this ? I was worrying with my privacy.Thats my primary ID.
there is hundreds email record about financial activities in it.
any ideas ? please help !
thank in advance

 

Change you password as soon as possible. Create a good one. An odd one with a lot of characters. Change all of your security questions that they (Yahoo) have on file, like mother's maiden name or whatever. If you do not change these questions, then the person could get right back in if they know the answers, regardless of how good the new password is. You might even create obscure answers that are not true and that no one could ever guess. But make sure and write them down.

You may have a keylogger on your computer. But then again you may not. Scan your system with malwarebytes antimalware https://malwarebytes.org/, hitman pro http://www.surfright.nl/en, run GMER to check for rootkits http://www.gmer.net/, and download a trial of Zemana antikeylogger. http://www.zemana.com/. Most antivirus and antimalware products whitelist commercial keyloggers.....including malwarebytes, so run Zemana. Ultimately, the best thing to do would be to reinstall your operating system to be 100% sure. But I would run all of those scans first just to see if they pick anything up.

I would also suggest that you start sandboxing your web browser with Sandboxie. http://www.sandboxie.com/

 

hi caspian,thank for your reply.
according my sig,run all my security setup (NIS,Panda,MBAM,Hitman Pro) and found nothing. I have dual boot.

I use SD while surf.Also tried many times with multiple places (home & office )to sign-in and out but my ID still appearing ONLINE ! Changing password not effective while my ID going online. I think I have STRONG password with different character/letters. Damn !

 

thank for pointing out the link,stapp

I was not signed out properly from the yahoo messenger when in win7 am having hanged and forced to shutdown/reboot.

problem solved