The numbers say it all: In 2009, there were 148,000 zombie computers (spammers, botnets, etc.) created per day, over 2.6 million known malicious code threats at the start of 2009, and by the end of the year, nearly 1 million new ones were created. In other words, to quote the illustrious Stewart Baker: “[The security threat] is worse than we even thought.”
