In April 2008, the global ratio of spam in email traffic from new and previously unknown bad sources, was 73.5 percent (1 in 1.36 emails), a decrease of 0.3 percent on the previous month.The global ratio of email-borne viruses in email traffic from new and previously unknown bad sources, was 1 in 218.9 emails (0.46 percent) in April, a decrease of 0.13 percent since the previous month. April saw an increase of 0.05 percent in the proportion of phishing attacks compared with the previous month.