I’ve been noticing a lot more spam getting through my server-side filters and also passing through my client-side filters lately. It’s apparently not my imagination:
A significant rise in the global volume of spam in the past two months has security analysts worried that bot nets are increasingly being used by spammers to stymie network defenses erected to curtail bulk e-mail.
While bulk e-mailers have, in the past, sent unwanted messages from a single server, increasingly the spam emanates from networks of compromised PCs, known as bot nets. The level of junk e-mail has increased almost in lock step with the number of compromised systems used for spam, said David Hart, the administrator for Total Quality Management.
“What is most alarming is that new clients–Internet addresses that we have never seen before and which could be new infections–have tripled since June,” said Hart, who posted a chart tracking the growth on his Web site this week.
The chart is fascinating:
It looks like the surge started on June 11.
Hmmm. Couldn’t have anything to do with this, could it?