McAfee Security for Microsoft Exchange 8.6.0

Threats to your organization

Learn about various threats that could affect an organization.

Type of threat Description
Reputation of a company An unguarded or ill-informed remark by an employee might cause legal problems, unless it is covered by a disclaimer.
Spam (unsolicited email) Unsolicited commercial email messages are the electronic equivalent of spam or junk mail. Often they contain advertisements that are not expected by the recipients. Although it is more of a nuisance than a threat, spam can degrade the performance of your network.
Large email messages Large email messages or messages that contain numerous attachments can slow down the performance of email servers.
Mass-mailer viruses Although they can be cleaned like any other virus, they can spread rapidly and quickly degrade the performance of your network.
Email messages from unwanted sources Disgruntled ex-employees and unscrupulous individuals who know the email addresses of your employees can cause distress and distraction by sending unwanted emails.
Non-business use of email If most employees use recipient email addresses not within their organization, such emails are likely to be for personal or non-business use.
Loss of company-confidential information Employees might disclose confidential information related to unreleased products, customers or partners.
Offensive language Offensive words or phrases can appear in email messages and attachments. Besides causing offense, they can provoke legal action too.
Transfer of entertainment files Large video or audio files intended for entertainment might reduce your network performance.
Inefficient file types Some files use large amounts of memory and can be slow to transfer, but alternatives are often available. For example, GIF and JPEG files are much smaller than their equivalent BMP files.
Transfer of large files Transferring large files can reduce your network performance.
Denial-of-service attack A deliberate surge of large files can seriously affect the performance of your network, making it unusable to its legitimate users.
While scanning large size compressed files, MSME considers three parameters for DOS attack:
Scanning time for compressed files exceeds the threshold.
The nested levels of compressed files are identified. For example, a compressed .zip file contains another compressed files inside, and continues expanding with more compressed files.
The expandable size limit of archived files exceeds the threshold.
Pornographic text Vulgar language or terms must not be used in emails.
Viruses and other potentially unwanted software Viruses and other potentially unwanted software can quickly make computers and data unusable.
Corrupt or encrypted content This type of content cannot be scanned. Appropriate policies must be specified to handle it.