Nessus is an open source vulnerability scanner that is intended to scan for security threats in systems, networks and applications. Many organizations apply it to achieve a competitive edge by fixing problems before they become threats toattackers.
Example: A company performs Nessus scan on an internal network of the company. What IS(Information Security) identifies is that some hosts may contain applications with old versions, and misconfigurations which can be used by the attackers to get into the network.
Key features of Nessus:
Comprehensive scanning: Mostly addresses operations systems, database, and applications.
Custom policies: To, through a specification of the scan, develop an understanding of how the same can be provided to match the certain requirement.
Detailed reporting: It gives analysis and recommendations that can be taken to resolve the issues obtaining in the classes.
Real-world case: An example is a retail chain that was able to identify and correct Penetration Testing in their POS systems in 2020 to curb a likelihood of a data breach using Nessus.
Tip: Nessus should be used for assessment on a regular basis in any security maintenance plan. However, it should be used in conjunction with manual testing so as to get all the necessary test conditions.
Reminder: Warying a network without asking for permission is unlawful. Nessus should also always be run with permission and according to accepted security policies.
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