Experts from the University of Cambridge have found that how we use facebook can reveal intimate information about our personality.
Specialists at the Psychomerics centre could predict users religion, political views and even IQ by looking at their likes.
They warn that in the wrong hands that data could pose a threat to people's safety.
More top news
Emergency services workers and members of the public have been recognised for their actions during a fatal crush at a Northampton nightclub.
Ambulance crews in the region dealt with a record number of calls in January - but too many of them were for non-emergencies.
Winds will gust to more than 45mph later today