ARMONK, NY, Jun 30, 2005 (BUSINESS WIRE) -- Today IBM reported that phishing attacks increased 226 percent, while viruses and worms, such as Sober and Mytob, also continued to spread rapidly through email and web applications, according to its May Global Business Security Index. IBM security experts attribute the increase in phishing attacks to the rise of zombie botnets being used to pump out massive volumes of the scam emails used in phishing attacks, as cyber-criminals look to increase their profits. IBM's report also indicates that in May more than 30 percent of emails contained some form of virus --...