Internet abuse and cybercrime have historically risen since the inception of the Internet.
Despite some claims that abuse such as spam is flattening, costs are still estimated by some sources to be significant. Specifically, the 2009 cost of spam is estimated around $130 billion worldwide and $42 billion in the US. Nevertheless, other sources claim the abuse is still beneficial - and profitable - and, thus, continues to proliferate.
Phishing is estimated to cost the US economy $5.8 billion in 2008, up from $3 billion in 2007. Over the past three years, more than 2,000 brands across 30 countries have been spoofed in emails, incurring additional damage beyond direct financial losses.
- "Cost of Spam is Flattening: 2009 Predictions". Ferris Research. 2009-01-28. http://www.ferris.com/2009/01/28/cost-of-spam-is-flattening-our-2009-predictions/.
- "2008 Internet Security Trends". IronPort. 2008. http://www.ironport.com/securitytrends/.
- "The Cost of Phishing: Understanding the Trust Cost Dynamics of Phishing Attacks". Cyveillance. 2008-12. http://www.cyveillance.com/web/forms/request.asp?getFile=112.
- "Phishing Attacks Escalate, Morph and Cause Considerable Damage". Gartner. 2007. http://www.gartner.com/DisplayDocument?id=562912.
- "MessageLabs Intelligence: 2008 Annual Security Report". MessageLabs. 2009. http://www.messagelabs.com/mlireport/MLIReport_Annual_2008_FINAL.pdf.
- "IDENTITY THEFT Prevalence and Cost Appear to be Growing". US Government Accountability Office. 2002-03-01. http://www.gao.gov/new.items/d02363.pdf.