There is not enough information to begin solving this problem.
It's of course possible that friend's computer is infected with some virus or trajan, and that is causing the problem.
For help with that, your friend should follow the directions above, "Everyone must read this..." and post a new thread with the logs.
Be aware that some e-mail providers have been hacked by outsiders, stealing usernames and passwords.
In that case, the User is not necessarily at fault.
Yahoo mail, for example, has been victimized by hackers in the past.
Changing e-mail providers may be required.
Some articles:
http://www.huffingtonpost.com/2013/0...n_3366259.html
http://arstechnica.com/security/2013...s-hack-attack/
It's of course possible that friend's computer is infected with some virus or trajan, and that is causing the problem.
For help with that, your friend should follow the directions above, "Everyone must read this..." and post a new thread with the logs.
Be aware that some e-mail providers have been hacked by outsiders, stealing usernames and passwords.
In that case, the User is not necessarily at fault.
Yahoo mail, for example, has been victimized by hackers in the past.
Changing e-mail providers may be required.
Some articles:
http://www.huffingtonpost.com/2013/0...n_3366259.html
http://arstechnica.com/security/2013...s-hack-attack/