Symantec Internet Security Threat Report -

Professional Security Resources: Symantec Internet Security Threat Report (4/4)

Author: Max : 2007/3/24

Symantec Internet Security Threat Report

Phishing, Spam, and Security Risks Highlights

The Symantec Probe Network detected a total of 166,248 unique phishing messages, a six percent increase over the first six months of 2006. This equates to an average of 904 unique phishing messages per day for the second half of 2006.
Symantec blocked over 1.5 billion phishing messages, an increase of 19 percent over the first half of 2006.
Throughout 2006, Symantec detected an average of 27 percent fewer unique phishing messages on weekends than the weekday average of 961.

On weekends, the number of blocked phishing attempts was seven percent lower than the weekday average of 7,958,323 attempts per day.
Organizations in the financial services sector accounted for 84 percent of the unique brands that were phished during this period.
Forty-six percent of all known phishing Web sites were located in the United States, a much higher proportion than in any other country.
Between July 1 and December 31, 2006, spam made up 59 percent of all monitored email traffic. This is an increase over the first six months of 2006 when 54 percent of email was classified as spam.
Sixty-five percent of all spam detected during this period was written in English.
In the last six months of 2006, 0.68 percent of all spam email contained malicious code. This means that one out of every 147 spam messages blocked by Symantec Brightmail AntiSpam contained malicious code.
Spam related to financial services made up 30 percent of all spam during this period, the most of any category.
During the last six months of 2006, 44 percent of all spam detected worldwide originated in the United States.
The United States hosted the largest proportion of spam zombies, with 10 percent of the worldwidetotal.
The most commonly reported security risk was an adware program named ZangoSearch.
All of the top ten security risks reported in the last six months of 2006 employ at least one anti-removal technique compared to only five of the top ten security risks in the last reporting period.
All of the top ten security risks reported during this period employ self-updating.
Potentially unwanted applications accounted for 41 percent of reports in the top ten new security risks in the second half of 2006.
Misleading application detections increased by 40 percent in the second half of 2006.

Full report (PDF)

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