I'm not sure why you think they didn't before... The term is in their glossary [1]. A cursory search found the term has been in use by BBC News for at least a d

I'm not sure why you think they didn't before... The term is in their glossary [1]. A cursory search found the term has been in use by BBC News for at least a decade. [1] http://news.bbc.co.uk/1/hi/uk/5400052.stm#whitehat http://news.bbc.co.uk/1/hi/uk/5400052.stm#whitehat