1. Explain how using a layered approach to security is required to deal with today’s advanced threats.
2. Define what you feel is using a layered approach to security as it applies to Industrial Control Systems
3. Provide an example of how having two layers of defense might be able to thwart an attack that would have been successful with only one layer.

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Layered approach involves the use of antivirus applications firewall applications antispam applicati... View the full answer