Top IT Security Bloggers

Spam Volumes: Past & Present, Global & Local

Last week, National Public Radio aired a story on my Pharma Wars series, which chronicles an epic battle between men who ran two competing cybercrime empires that used spam to pimp online pharmacy sites. As I was working with the NPR reporter on the story, I was struck by how much spam has decreased over the past couple of years. Below is a graphic that's based on spam data collected by Symantec's MessageLabs. It shows that global spam volumes fell and spiked fairly regularly, from highs of 6 trillion messages sent per month to just below 1 trillion. I produced this graph based on Symantec's raw spam data.

Read the full article
CSO Corporate Partners
  • f5
  • Webroot
  • Trend Micro
  • NetIQ
rhs_login_lockGet exclusive access to CSO, invitation only events, reports & analysis.
CSO Directory

Business Continuity Management Solutions

Automate business-continuity and disaster-recovery planning and enable crisis management in one solution.

Latest Jobs
Security Awareness Tip
Security ABC Guides

Warning: Tips for secure mobile holiday shopping

I’m dating myself, but I remember when holiday shopping involved pouring through ads in the Sunday paper, placing actual phone calls from tethered land lines to research product stock and availability, and actually driving places to pick things up. Now, holiday shoppers can do all of that from a smartphone or tablet in a few seconds, but there are some security pitfalls to be aware of.