Security Response Publications

Symantec Security Response is a worldwide team of security engineers, threat analysts, and researchers who develop a variety of content on the latest threats that impact organizations and end users.
Average Number of Spear Phising Attacks Per Day

Symantec Intelligence Report: May 2015

The monthly intelligence report, provides the latest analysis of cyber security threats, trends, and insights from the Symantec intelligence team concerning malware, spam, and other potentially harmful business risks.
19 pages, 1.1 Mb

Highlights from May 2015 Intelligence Report

Key Findings

  • Almost 43 percent of spear-phishing attacks were directed at organizations with less than 250 employees during May, up from 31 percent in April.
  • Small organizations were most likely to be targeted by malicious email in the month of May as well, where one in 141 emails contained a threat.
  • There were more than 44.5 million new pieces of malware created in May, up from 29.2 million created in April.
  • The overall email spam rate further declined in May, dropping 0.6 percentage points to 51.5 percent.
New Malware Variants, June 2014—May 2015
New Malware Variants, June 2014—May 2015

New Malware Variants, June 2014—May 2015



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