Key Findings:
- At 49.7 percent, the overall spam rate has dropped below 50 percent for the first time since September, 2003.
- There were 57.6 million new malware variants created in June, up from 44.5 million pieces of malware created in May and 29.2 million in April.
- Ransomware attack has increased for the second month in a row and crypto-ransomware has reached its highest levels since December 2014.
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Spam rates are dropping! Security firm Symantec said in a June 2015 Intelligence Report. This is the first time in over a decade that the rate has fallen to just 49.7 percent of all emails. The last time the company recorded a similar spam rate was 12 years ago. Symantec’s spam number was 52.1 percent in April and 51.5 percent in May.
According to past data from Symantec, in June 2009, 5.7 trillion of the 6.3 trillion messages sent were spam. In June 2015 Symantec saw 704 billion email messages sent, of which 353 billion were spam.
The decline of spam is usually attributed to legal prosecution against botnets, faster reaction times by network providers, improved blocking, and better filtering.