In answer to my last post

Thank you to all who explained  and gave me advice about the message which appeared .it did worry me , but knowing I hadn't put my name address and other details on any of the forum pages on view  to whoever took an interest I'm not worried .

I didn't know that you could put a security program on the kindle . But I do have one on my laptop .I think it will cover the kindle automatically too. 

Thanks again ,everyone , ladybird  I will pm you .