New breed of financially motivated cybercriminals has emerged as enemy number one. Microsoft patched more bugs than ever, and whole new classes of flaws were discovered in kernel-level drivers, in office suites and on widely used websites. 20,000 phishing complaints were reported, a 34 percent increase over the previous year. Law enforcement agencies are getting more organized and cooperating better in international investigations. Spam remained the delivery vehicle for other malicious software such as keystroke loggers and rootkits in addition to promoting links to phishing sites.”]
Source: https://www.csoonline.com/article/2120738/a-review-of-security-in-2006.html