Threat Level Indicators

Quarterly Trending of Threat Levels

Web Reputation - 90 day trend

bad websites per million queries

Based on average 2.87 billion URL queries per day to web reputation of Trend Micro Smart Protection Network.
Threat severity categories reflect levels relative to previous 12 months (1-Jun-08 to 31-May-09).
Daily levels are corrected for weekday variations.

Email Reputation - 90 day trend

% of email senders that send spam

Based on average 1.54 billion spam queries per day to e-mail reputation of Trend Micro Smart Protection Network.
Threat severity categories reflect levels relative to previous 12 months (1-Jun-08 to 31-May-09).
Daily levels are corrected for weekday variations.

File Reputation - 90 day trend

% malware percent of files examined

Based on average 12 million malware queries per day to file reputation of the Trend Micro Smart Protection Network.
Threat severity categories reflect levels relative to previous 12 months (1-Jun-08 to 31-May-09).
Daily levels are corrected for weekday variations.

We use three indicators from the Trend Micro™ Smart Protection Network™ to measure threat activity around the world:

• Web – the percentage of Web pages that are malicious.
• Spam – the percentage of email sources (or IP addresses) sending spam.
• Malware – the percentage of transferred files that are malicious.

How We Calculate Threat Levels

For each indicator – web, spam, malware – current percentages and trends are compared to levels during the previous year.

No new threat activity has been reported. There is little risk to recently patched and updated systems. Warrants typical security measures in place to defeat typical network threats.

New threat activity puts systems with existing or new vulnerabilities at risk. Warrants a review of systems for out-of-ordinary activity and an update of all security and vulnerable applications. End users should use caution when downloading files and clicking on URLs.

New threats and exploits are actively circulating via web and email. Requires additional system monitoring and an update of all security and vulnerable applications. End users should check files and URLs before downloading/clicking.

Several threats and exploits are circulating rapidly via web and email. Requires mandatory system monitoring and updates to all affected applications as they become available. End users should proceed with extreme caution and check all files and URLs before downloading/clicking.