The telegraph has editors and standards believe me they dont make this up
The journalists have their sources they just wont go on the record
You must know how it works
There are potential problems with anonymous sources for media stories.
—The sources may be lying. They may have a wide range of agendas that make lying a good call for them.
—The sources may have heard rumors that they are passing on as fact.
—The reporter may be making up the story. If the editor trusts them nothing stops them from doing that.