This very morning (1 June) whilst clicking on a Google search link I was
'struck' by the Trojan mentioned in this article
http://preview.************/3av5mu9 . The event was 'captured' by my
installed Sophos AV and the relevant zip files sent to Trash by
personally moving them there (no automatic clean by Sophos!).

Shortly afterwards I received notification of a new software update by
Apple. I then installed the latest update which I trust will be
beneficial to all Mac users!! http://support.apple.com/kb/DL1387