The share of unwanted email (spam) in declining throughout the 2012th year to reach 72.1 percent, the lowest level in the past five years, according to company Kaspersky Lab.
The main reason for reducing the volume of spam by 8.2 percentage is because of the higher level of anti-spam protection.
Spam filters are now present in almost every e-mail system, and many service providers have introduced mandatory rules (digital signatures to verify the domain from which the email was sent).
Another factor that contributed to the decline in the volume of spam is cheap advertising space on legal platforms, because with the advent of Web 2.0, advertising opportunities on the internet improved - banners, advertising based on the context and ads on social networks and blogs.
Despite a fall in the overall percentage of spam in email traffic, the share of e-mails with malicious attachments declined by only 3.4 percent, but the percentage is high if one takes into account that reflects only the mail with malicious content and does not include other unsolicited messages containing links to malicious websites. The range of different themes that are used in the malicious E-mails has been impressive in 2012. year.
Previously, spammers used as the subject of false information regarding catering services, social networks, courier services and messages from financial and government institutions. U 2012. expand their "repertoire" and include fake messages from different airlines, service messages reservations and coupons.
Over the last year there have been major changes in the composition of the countries of the unwanted e-mails.
China, which was not even in the top 20 countries of origin of spam in 2011., Took first place last year, with a share of 19.5 percent of total spam.
Spam originating from the United States increased from 13.5 percentage points to 15.6 percent, which was enough to reach the country in second place. Asia remains the leading region in the distribution of spam, and North America took second place among the top 10 countries with 15.8 percent - up from just two percent in 2011.
At the same time, the amount of spam originating from Latin America fell by eight percentage points to 11.8 percent.
In Europe there is also a noticeable decrease in the volume of spam. The total amount of spam originating from Eastern and Western Europe combined was 15.1 percent, which is less than half the amount in 2011.
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