Hi Kitz,
I'm also thinking it might be some kind of fishing or man in the middle. In fact I logged in by typing 'yahoo.co.uk' into the address bar. I have checked the browser history and there is no sign of any spelling mistakes.
That yahoo account is so rarely used that it hasn't even seen any spam, ever. I created it as a means to access a 'group' somebody set up as a notice board for former colleagues, but the only thing I use the mail for is to prove receipt when I make any changes to other accounts. Yesterday I tweaked a google apps account then posted a test message to yahoo, logged in and saw it was there, and that was that.
My Kaspersky scan on the Mac ran for many hours, but finished overnight with no nasties found. I don't really care about the Yahoo account, but a keylogger on the Mac would be devastating.
Can't help thinking my case does so seem to be so tightly defined and recorded, amid so many other similar hackings, as to point to the possibility that yahoo's servers may be nternally compromised, or some kind of DNS redirection took place. There is no obvious way of contacting them to tell them about it, but I guess they would probably already know, even if they didn't publicly admit it.
As an amusing aside... That Channel 4 article looked interesting, and he was inviting people affected to get in touch. I don't do twitter (
) so I sent an email to channel 4's published 'news' email adress, which was promptly returned with an error saying their mailbox was 'over its quota'.
edit; removed and explicit email address that I probably oughtn't have quoted