Peter Sommer & Ian Brown, Reducing Systemic Cybersecurity Risk (IFP/WKP/F GS(2011)3) (Jan. 14, 2011) (full-text).
This report concludes that very few single cyber-related events have the capacity to cause a global shock. Governments nevertheless need to make detailed preparations to withstand and recover from a wide range of unwanted cyber events, both accidental and deliberate. There are significant and growing risks of localised misery and loss as a result of compromise of computer and telecommunications services. In addition, reliable Internet and other computer facilities are essential in recovering from most other large-scale disasters.