Wednesday, August 16, 2006
Battling image spam
In the ever-changing world of threats, spammers have once again discovered a new way to bypass spam filters using a new technique called “image spam.” In this tip, Mike Chapple provides an example of image spam and explains how the threat can hurt your organization, and what you can do to protect against these attacks.
Wednesday, August 02, 2006
Avoiding the scourge of DNS amplification attacks
DNS amplification attacks can generate enough bogus traffic to blow almost anyone off the Internet. Learn how these packet flood attacks work and how to defend your organization.