Australia warns shipbuilder DCNS after massive security leak

File photo of an employee looking at the propeller of a Scorpene submarine at the industrial site of the naval defence company and shipbuilder DCNS in La Montagne near Nantes, France, April 26, 2016. REUTERS/Stephane Mahe/Files

SYDNEY (Reuters) - Australian defence officials warned French naval contractor DCNS to beef up security in Australia, where it is preparing to build a A$50 billion (£28.92 billion) fleet of submarines, in the wake of a massive data leak, a government spokesman said on Friday.

DCNS was left reeling after more than 22,000 pages outlining details relating to submarines it is building for India were published in The Australian newspaper earlier this week, sparking concerns about its ability to protect sensitive data.