This is what I came home to on the U3A web site.

Tuesday 28th and Wednesday 29th August: Nasty looking stuff and it took me a long time to resolve the problem - largely because I did not knowhow best to approach it. I only managed because the support guys at our hosting service did know what to do. It interferred with pottering around in a comfort zone - and interferred with sleep and with doing a lot of minor things. I still keep checking to see that it is OK. I expect it was my doing as the software had not been updated - - I am unsure whether to fess up or keep quiet about this!

Latest message (Sept 2nd) " Google has not detected any malware on this site." Thank goodness!