[link|http://blogs.washingtonpost.com/securityfix/2005/06/new_york_city_m.html|Washington Post]:

New York City, the nation's most populous city, also is home to the greatest number of computers infected with a class of viruses that allows hackers to use them remotely for spamming or attacking others online, according to a new report from Internet security firm Symantec Corp.

[...]

Globally, New York City is the 20th most bot-ridden. The cities with the most bot-infected PCs worldwide are Winsford, United Kingdom, with 7 percent of the world's bots, followed by London, U.K. (5 percent), and Seoul, South Korea (2 percent).


Cheers,
Scott.