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McAfee Enterprise MVISION Cloud

How Secure Web Gateway Works

To protect your network against threats arising from the web, Secure Web Gateway filters the traffic that goes out and comes in.

Based on the implemented web security rules, Secure Web Gateway filters the requests that users send to the web from within your network, as well as the responses that are sent back from the web. Embedded objects sent with requests or responses are also filtered.

As a result of the filtering process, requests, responses, and embedded objects, are allowed or blocked.

The following picture illustrates the workflow. It includes these elements:

  1. Requests are sent from your network to the web.
  2. Secure Web Gateway filters requests and responses.
  3. Responses are sent from the web to your network.

web_gateway_how_it_works.png

To perform the filtering process, Secure Web Gateway uses a rule engine and several filter engines or modules, for example, the Anti-Malware module or the URL Filter module. These modules complete particular jobs when requests and responses are processed based on the implemented web security rules.

You can configure the web security rules and the behavior of the filter modules to adapt them to the requirements of your organization.

The filtering process also relies on the operating system of Secure Web Gateway, which is Skyhigh Security Linux Operating System, version 3 (MLOS 3).

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