Threat Activity Trends

Threat Activity Trends | Spam and Fraud Activity Trends | Malicious Website Activity | Analysis of Malicious Web Activity by Attack Toolkits | Analysis of Web-based Spyware and Adware Activity | Analysis of Web Policy Risks from Inappropriate Use | Analysis of Website Categories Exploited to Deliver Malicious Code | Bot-infected Computers | Analysis of Mobile Threats | Data Breaches that Could Lead to Identity Theft

Threat Activity Trends

The following section of the Symantec Global Internet Security Threat Report provides an analysis of threat activity, as well as other malicious activity, data breaches, and Web-based attacks that Symantec observed in 2011. The malicious activity discussed in this section not only includes threat activity, but also phishing, malicious code, spam zombies, bot-infected computers, and attack origins. Attacks are defined as any malicious activity carried out over a network that has been detected by an intrusion detection system (IDS) or firewall. Definitions for the other types of malicious activities can be found in their respective sections within this report.
This section will discuss the following metrics, providing analysis and discussion of the trends indicated by the data: