Webroot Enhances Security SaaS to Combat E-Mail Spam Backscatter

Latest Release of Webroot(R) E-Mail Security SaaS Provides
Protection Against Bounce Back Messages Generated by Spammers
BOULDER, Colo.--(Business Wire)--
Webroot, a leading provider of security software for the consumer,
enterprise and SMB markets, today announced the latest release of
Webroot(R) E-mail Security SaaS which features advanced protection
against the growing threat of e-mail "backscatter." A side effect of
spam, viruses and worms, backscatter occurs when a spammer spoofs a
legitimate e-mail address to send an unsolicited message to large
distribution lists, causing the e-mail server to flood an unsuspecting
e-mail address owner's mailbox with hundreds or thousands of failed
delivery messages or bounce backs.

"Ninety percent of over 6 trillion business e-mails this year will
be spam. This volume puts IT resources under an incredible strain to
manage not only the spam but the ensuing backscatter. Just recently an
ISP was driven offline while trying to absorb 10,000 backscatter
messages per second," said Mike Irwin, COO, Webroot. "The impact of
backscatter is especially hard on businesses with fewer IT resources
or appliances that just can't scale to meet the processing load. With
network security in the cloud, companies of all sizes can enjoy a
scalable enterprise-class security solution that is easy to manage and
provides better protection and value than traditional appliances and
software."

Failed delivery messages -- triggered by an e-mail sent to an
invalid address or a full mailbox -- can be difficult to block and tag
as spammed messages, and require significant time and resources to be
cleared from the network. The latest release of Webroot E-mail
Security SaaS employs a technique called Bounce Address Tag Validation
(BATV) to mark every message sent through its servers with a timestamp
and unique cryptographic signature that cannot be duplicated. If an
e-mail enters the network as a failed delivery message without this
signature, customers can then configure the service to automatically
mark the message as spam and block it from entering the user's
mailbox.

"Companies still struggle to keep up with spam volume and attack
tactics years after spam first became a serious problem, and many see
a continued investment drain for spam management," wrote Chenxi Wang,
Ph.D., Principal Analyst, Forrester in the June 2008 report Spam
Management Best Practices. "To keep a step ahead of spammers,
organizations should adopt a hybrid of filtering solutions, strengthen
this connection to management technologies, and treat antispam as part
of a wider email content security strategy that includes content
protection and compliance."

Webroot Security SaaS Solutions

Webroot Security SaaS solutions deliver enterprise-class security
with better manageability, better value and better protection than
appliances and server-based solutions. Webroot E-Mail Security SaaS
protects against spam, viruses and data leakage, along with additional
compliance, archiving and business continuity features.

Webroot Web Security SaaS is also a part of the Webroot Security
SaaS family and provides protection against Web-based malware threats
for corporate and mobile users while ensuring appropriate employee Web
usage and data leak protection. Webroot Security SaaS solutions are
backed by free US-based support that includes 24x7x365 access to a
robust knowledge base, toll-free telephone support and free product
and defense updates for the duration of a subscription.

About Webroot

Webroot provides industry-leading security solutions to consumers,
enterprises and small to medium-sized businesses worldwide. The
Boulder, Colorado based company's security software-as-a-service
(SaaS) offerings, Webroot E-Mail Security SaaS and Webroot Web
Security SaaS provide better manageability, better value and better
protection than any other perimeter security solution available.
Webroot's award-winning endpoint products, Webroot AntiSpyware
Corporate Edition and Webroot AntiSpyware Corporate Edition with
AntiVirus are comprehensive, centrally-managed solutions that
aggressively block, detect and eradicate malware on desktops across
the network. To find out more visit www.webroot.com or call
800.772.9383.

(C)2008 Webroot Software, Inc. All rights reserved. Webroot is a
registered trademark or trademark of Webroot Software, Inc. in the
United States and/or other countries. All other trademarks are
properties of their respective owners.

Webroot Software
Bob Berger, 303-442-3813 x153
rberger@webroot.com
or
104 West Partners
MacLean Guthrie, 720-407-6076
maclean.guthrie@104west.com

Copyright Business Wire 2008