The Police Service of Northern Ireland has apologised for mistakenly revealing details of all 10,000 staff members.
By human error, the PSNI had shared names of all police and civilian personnel, where they were based and their roles.
UK correspondent Gavin Grey says this breach puts them at risk of being targeted by republican paramilitaries, and they must be extremely vigilant about their security.
LISTEN ABOVE

Anna Breman: Reserve Bank Governor explains why OCR increase was necessary
04:48

Barry Soper: Newstalk ZB senior political correspondent on the Reserve Bank moving to increase the OCR for the first time in three years
05:24

Gordon Robison: US correspondent on the US launching new strikes on Iran
03:47