British Defense Secretary Liam Fox said that in 2010 Britain's Ministry of Defense blocked and investigated more than 1,000 cyberattacks, Defence Management Journal reported Wednesday.
Addressing a London Chamber of Commerce defense industry dinner, Fox said Britain was at war with an "invisible enemy" in cyberspace and that the number of security incidents with hackers attempting to penetrate Defense Ministry computer networks had more than doubled from 2009 to 2010.
"I and my senior colleagues are routinely alerted to incidents that could have had severe consequences if they'd not been stopped," Fox said. "Our systems are targeted by criminals, foreign intelligence services and other malicious actors seeking to exploit our people, corrupt our systems and steal information. …
"The risks to defense are real, and I take them very seriously. This threat is growing in scale and sophistication. My department is a prime target. Across the core defense networks there were an average of over a million security alerts every day."