ALTHOUGH YOU MAY TAKE every conceivable step to harden local systems and networks, that is not enough. Your security measures will be tested regularly by attackers who are trying to get access to your systems and data. A common approach taken by businesses is to perform testing to identify weaknesses in their defense and detection capabilities so those weaknesses can be remediated before they are exploited.
Any test should apply to all parts of a layered defense, from an external firewall to the passwords selected by local users. You can monitor those ports that must be open to enable ...
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