"Dark Traffic" Zaps 83 Percent Of E-mail Resources

The amount of valid e-mail as a percentage of all incoming traffic has declined sharply since the beginning of the year, a messaging security vendor reported Tuesday, due to a tripling of directory harvest attacks by spammers after addresses.

Illegitimate traffic, dubbed "dark traffic" by Tumbleweed Communications is a nod to astronomy's "dark matter." It is comprised of directory harvest attacks (DHAs), denial-of-service attacks, malformed SMTP packets, and invalid recipient addresses, which now account for 83 percent of all incoming bits. That's up from 64 percent in the previous reporting period, 2005's first quarter. Security Pipeline | "Dark Traffic" Zaps 83 Percent Of E-mail Resources

Linked by shanmuga Wednesday, 14th December 2005 9:21PM