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CHAPTER 3:SECURITY TROUBLESHOOTING AND SOLUTIONS - Coggle Diagram

- - - - Step 2: Establish a Theory of Probable Cause
        -After you have talked to the customer, you can establish a theory of probable causes
        -Create a list of the most common causes of security
        problems
        
        Step 3: Test the Theory to Determine Cause
        -Test theories of probable cause one at a time, starting with the quickest and easiest.
        -If the exact cause of the problem has not been determined after all theories have been tested, establish a new theory of probable cause and test it.
        
        Step 4: Establish a Plan of Action to Resolve the Problem and Implement the Solution
        -After determining the exact cause of the problem, establish a plan of action to resolve the problem and implement a solution.
        -Sometimes quick procedures can determine the exact
        cause of the problem or even correct the problem.
        -If a quick procedure does not correct the problem, you
        might need to research the problem further to establish the exact cause.
        
        Step 5: Verify Full System Functionality And Implement Any Preventive Measures
        -Verify full system functionality and implement any preventive measures if needed.
        -Have the customer verify the solution and system
        functionality.
        
        Step 6: Document your findings, actions and outcomes
        -List of the tasks required to document the problem and the solution.
  - - -  The figure is a chart of common security
        problems and solutions
- - - - Spyware protection-Antispyware programs scan for keyloggers, which capture your keystrokes,and other malware so that it can be removed from
        the computer.
        
        Adware protection-Anti-adware programs look for programs that display advertising on your computer.
        
        Phishing protection-Antiphishing programs block the IP addresses of known phishing websites and warn the user about suspicious websites.
  - - - Step 1-Create a Windows
        Restore Point.
        If the file you load is corrupt, setting a
        restore point allows you to go back to the way things were.
        
        Step 2-Open the antivirus or
        antispyware program.
        If the program is set to execute or obtain updates automatically,you may need to turn the automatic feature off to perform thesesteps manually.
        
        Step 3-Select
        the Update button.
        
        Step 4-After the program
        is updated, use it to scan the
        computer.
        
        Step 5-When the scan is
        complete, check the report for
        viruses or other problems that
        could not be treated and delete
        them yourself.
        
        Step 6-Let the antivirus or
        antispyware program to
        automatically update and run on
        a scheduled basis.
- - - - • Secured telecommunications rooms,
        equipment cabinets, and cages
        
        • Cable locks and security screws for
        hardware devices
        
        • Wireless detection for unauthorized access
        points
        
        • Hardware firewalls
        
        • Network management system that detects
        changes in wiring and patch panels
      - •Another method of hardware security
        is to disable the AutoRun feature of the operating system.
        
        • On Windows, AutoRun is executed first, unless it
        is disabled. If AutoRun is not disabled, it follows the instructions in the autorun.inf file.
        • On Windows Vista and Windows 7, AutoRun is
        not allowed to bypass AutoPlay.
        • However, on Windows XP, AutoRun bypasses
        AutoPlay and might launch an application without prompting the user.
      - • Two- factor Authentication - secured using overlappingprotection techniques to prevent unauthorized access to sensitive data.
        
        • An example of two-factor authentication is using a
        password and a smart card to protect an asset.
        
        • There are several methods of
        physically protecting computer equipment:
        • Use cable locks with equipment.
        • Keep telecommunication rooms locked.
        • Fit equipment with security screws.
        • Use security cages around equipment.
        • Label and install sensors, such as Radio
        Frequency Identification (RFID) tags, on equipment.
        • Install physical alarms triggered by motiondetection sensors.
        • Use webcams with motion-detection and
        surveillance software.
  - - - Step 1. Create a restore point prior to installing an update.
        
        Step 2. Check for updates to ensure that you have the
        latest ones.
        
        Step 3. Download updates using Automatic Updates or from the operating system manufacturer’s website.
        
        Step 4. Install the update.
        
        Step 5. Reboot the computer if necessary.
        
        Step 6. Ensure that the computer is operating properly.
      - The following Windows options allow you to
        control when software is updated:
        
        Automatic
        
        Only
        download
        updates
        
        Notify me
        
        Turn off
        automatic
        updates
        
        Prevents any checking for
        updates.
        
        Notifies the user that
        updates are available andgives the option to download and install.
        
        Downloads the updates
        automatically, but the user is required to install them.
        
        Downloads and installs
        updates automatically without user intervention.