Sophos: US has the highest Spam output

US Spam Decline Stalled in Q1 according to a Sophos press release. This press summarizes where spam is coming from – 23.2 % originates in the US. What is interesting is the growth in European zombie networks that are advertised. The press release links to a picture of a Russian ad advertising services. Most spam is now coming from zombies or bots. In effect we are sending ourselves spam.

The United States accounts for the highest spam output as a country, but together China, Hong Kong, South Korea, Japan and Taiwan account for almost half of the worldwide spam output, making Asia the top offending continent. In addition when ranked by continent, Europe has now surpassed North America and has risen to the second position on the chart with a marked rise from Q1 2006 due to increased zombie activity.

If it can be shown that the poor security design of Windows is responsible for so many machines being hijacked by malware, does that mean Microsoft bears some responsibility for all the spam?