Russia and the United States remained the top two generators of spam, with 11% and respectively 10% shares, followed by Brazil, with an 8% share. Recently there were increases in spam coming from India, 7%, Poland, 4%, Thailand, 3% and Romania.
An average 85.5% of all worldwide email traffic in the first six months of the year was spam, and 0.3% of messages contained malware attachments, according to the report.
The current economic context has influenced spam messages for online advertising services, which now hold a 16.6% of the overall spam, as well as messages promoting various products and services, which cover a 35% share, down 10 percentage points on the share held last year.
In the first half of the year, the most popular areas for spam were health services and products, 22.1%, e-advertising services, 16.6%, adult materials, 11%, education, 10.4% and luxury product imitations, 7.4%.