Some people prefer OWA over the regular Outlook clients.
Users may also use remote e-mail access from their homes. While this seems private
enough, there are plenty of users who have turned on and deployed unencrypted wireless
access points in their homes. Even those connecting over hard-wired connections
Using Outlook Web Access through the Intelligent Application Gateway ??? Chapter 9 339
may be susceptible to snooping, especially if they receive service from their cable
company, and are on a shared connection with several of their neighbors.
The threats to remote e-mail access are numerous because of the vast amounts of
organizational data e-mail presents.
Some of the following threats will likely consider e-mail a prime target for attack:
?– Entities engaged in corporate and industrial espionage
?– Entities engaged in extortion
?– Curios hackers
?– Phishing Scams
?– Worst-case hackers using e-mail to crash servers, thus stifl ing the corporation??™s
communication
The Security Solution
In short, e-mail is potentially the most appealing target in your organization. Additionally,
it is a requirement to provide remote access to the service; however, it provides an
attack means for hackers, and there is no shortage of hackers who have the motivation,
resources, and skills to penetrate the security of the network and e-mail system. Therefore,
it is absolutely essential that when implementing OWA, the entire remote access
session is encrypted.
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