To start with - I am aware that there was a security breach at eBay back in May 2014 and all eBay users were supposed to be notified to change their passwords. I do not recall ever receiving any notification, but had not been using my account, other than following items to buy, and did not change my password at that time.
Now, on 31 Oct 2014, I decided it is time to sell some stuff again. When I went to post the listing, I was notified on-screen that 'it appeared that I was using a different machine' (from which it did not say). I have changed computers since the last time I sold anything