According to the security report from Symantec that month, the overall numbers of spam reached their lowest numbers since November 2008. The company says that since the closure of Rustock botnet in the last month of March, rates of unwanted messages are falling sharply. The last time such a phenomenon was observed in late 2008 when U.S. authorities took him to air McColo botnet, which provided its services to the junk mail.
The figures show that 72.9% of emails sent worldwide during the month were spam, 76.6% in April and 83.1% in March. In any case, the company warns that other forms of online scams such as phishing, are growing.
Food is forced down the throats of our inboxes
"Despite the drop in botnet activity this month, they are still considered a dangerous force in the network. Cyber criminals continue using them to perform DDoS attacks and to distribute material fraudulent financial gain, infect computers and steal personal information, "said Paul Wood, senior analyst at Symantec.
After closing the Rustock, 36.9 billion spam messages were sent daily, a figure that rose to 41.7 billion in May and fell to 39.2 billion in June. But in the same period last year, they were 121.5 billion messages per day, or 89.3% of all e-mails in the world. In the 12-month period fell by 68.7% in overall volume and 16.4 percentage points of total volume of spam.
The report also says that the star of unwanted messages are still the sale of medicines and other pharmaceuticals, with 40% share, followed by adult themes related to spam, as penis enlargement. In addition, the company says that Saudi Arabia has surpassed Russia to become the major worldwide distributor of spam, accounting for 82.2% of all messages.