The share of spam in mail traffic fell 0.9 percentage points from July and averaged 80%. The amount of phishing emails in all mail traffic increased by just 0.1 percentage points. In August, malicious files were found in 5.9% of all email traffic 1.2 percentage points more than the previous month. Malicious users used a number of different techniques to send emails with malicious attachments both tried and true methods and some new tactics. The most active wave of spam was the most active during 8-11 August.”]
Source: https://securelist.com/spam-report-august-2011/36405/