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Anti-Spam & Anti-Phishing
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The greatest possible protection against today's greatest annoyance
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Over 40 percent of the approximately 30 billion e-mails sent every day are now classified as spam. In the future this percentage will only continue to increase.
In spite of all attempts to get the flood of electronic junk mail under control through legal means, using professional products that quickly and effectively block spam is now the preferred approach. Why? Because the damage can be immense, especially with respect to loss of productivity and the inadvertent filtering and deletion of important e-mails (“false positives”). To make matters worse, many spam-mails generate a return response verifying that the recipient address is valid, resulting in a further cascade of annoying junk mail.
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Defending against phishing attacks
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Attackers now use "password fishing," otherwise known as "phishing," to target customers of banks, credit card companies and online shops. The goal is to obtain personal data such as bank account numbers, credit card numbers and access codes (PINs and TANs). To maintain their anonymity, phishers hack into foreign computers and use commercially-available spam mailing lists to send their scam-mail. Organizations can protect themselves from such e-mails in the same way they protect themselves from spam.
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According to German law, enterprises must protect their personnel from potentially offensive content like pornography, but are not allowed to delete or withhold e-mails to do so. The solution is to define and automatically enforce e-mail policies, and to implement an employee-accessible quarantine area that holds filtered e-mail for review.
Under the same laws, management can be held personally and legally accountable if sensitive corporate data reaches the public, or if virus-infected mass mailings with falsified sender addresses are inadvertently sent by employees.
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The iQ.Suite approach
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Spam and phishing e-mails can, in practice, be recognized and blocked with modern filtering products. For mid-size businesses and large enterprises that want to avoid significant additional expenditures when implementing spam protection, a centralized server- or gateway-based filtering solution, as opposed to the use of client-based filters, is usually a better alternative.
iQ.Suite Wall uses a multi-level process to help enterprises battle spam. In addition to traditional “black and white” list functionality, iQ.Suite Wall uses internationally-identified spam signatures to recognize unwanted mass mailings. Backing that up, the module analyzes sender-receiver relationships that have been previously identified as legitimate. Wall then scans subject lines and analyzes message content, providing support for over 200 attachment file formats.
During the scanning process, Wall compares message components against freely editable, weighted word lists, and then applies CORE (COntent Recognition Engine) technology to put e-mail further under the looking glass. CORE is a statistical process that classifies e-mails according to their content. It is based on Support Vector Machines, one of the highest-performing algorithms for text analysis. Pornographic e-mails are blocked using the Xblock image analysis function.
Using this multi-level combination of approaches, iQ.Suite Wall achieves a spam-recognition rate of over 95%, with a false positive rate that is statistically 0. Spam mails are placed into a separate quarantine area and their intended recipients are notified. They can then look into the quarantine, route legitimate e-mails to their mailboxes and place senders on black and white lists.
iQ.Suite Wall also uses its content and attachment analysis functions to prevent the unauthorized distribution of confidential information to undesirable recipients such as competitors. When used in combination with iQ.Suite Crypt, encrypted e-mails can be scanned directly on the server. When used with iQ.Suite Watchdog, e-mails with undesired and/or dangerous attachments can be sorted out right from the beginning.
Centrally administrable rules defined in iQ.Suite’s rule-based framework make it possible to put the specific requirements of divisions, departments, teams and individual users into force. These rules can be used to define policies for permissible sender-receiver combinations or undesired/confidential content. As an example, a specific user group can define a policy to exclude newsletters, which often possess a high similarity to spam mails, from the filtering process.
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Benefits of the iQ.Suite approach
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- Achieves a spam recognition rate of over 95% with an error rate of approximately 0%
- Enables centralized administration using a standardized user interface
- Provides a detailed calculation of the expected return on investment for the e-mail environment
- Generates higher productivity, has a low total cost of ownership and provides a fast return on investment
- Ensures the security of your software investment with regular major releases
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Read more about Wall and CORE:
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