A notorious hacker, whose targets have ranged from George W Bush to the Watergate journalist Carl Bernstein, has also accessed the emails of two members of the House of Lords, including actor and writer Julian Fellowes, it has been claimed.
The script of the finale to the most recent season of Downton Abbey was downloaded after the hacker, known as "Guccifer", apparently accessed Lord Fellowes' BT internet account as part of an assault on the private data of hundreds of celebrities, politicians, industrialists and other prominent individuals.
His British targets also included the former Attorney General, Baroness Scotland - whose personal emails were accessed - and the City financier Sir Francis Brooke.
Emails leaked last year suggest that the hacker had focused on the prominent American dynasties such as the Bush family or the Rockefellers.
But a cache of documents handed to an American website, TheSmokingGun.com (TSG), shows that Guccifer, who last year released hacked images of paintings by the former American President, was more prolific than previously thought.