"Sir John Sawers is due to take over as head of the Secret Intelligence Service in November. In what the Mail on Sunday called an "extraordinary lapse," the new spy chief's wife, Lady Shelley Sawers, posted family pictures and exposed details of where the couple live and take their holidays and who their friends and relatives are. The details could be viewed by any of the many millions of Facebook users around the world. - Bertrand Doux

"Publishing the story on its front page and the pictures on a double-page spread, the Mail on Sunday said the information "could potentially be useful to hostile foreign powers or terrorists. - Bertrand Doux