July 20, 2012
Cyber-attacks pose the “most serious economic and national security” challenge America faces, said Barack Obama.
The US President spelled out the scale of the threat in an opinion piece for the Wall Street Journal.
Foreign governments, crime gangs and individuals were probing America’s net defences every day.
“It would be the height of irresponsibility to leave a digital backdoor wide open to our cyber-adversaries,” he wrote in the newspaper’s editorial column.