Cyber-attacks could inflict as much damage on the US as the physical attacks on 11 September 2001, the US defence secretary has warned.

Cyber-attacks could inflict as much damage on the US as the physical attacks on 11 September 2001, the US defence secretary has warned.

Cyber-attacks could inflict as much damage on the US as the physical attacks on 11 September 2001, the US defence secretary has warned.

Cyber-attacks could inflict as much damage on the US as the physical attacks on 11 September 2001, the US defence secretary has warned.

User: jfcongregation

Views: 38

Uploaded: 2012-10-12

Duration: 10:16

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