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Walk into the module and title defense and depth model or how not to become an easy target.

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In this module I'd like to show you a strategy for effective computer system protection that has been

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developed for military purposes and was subsequently adopted by computer system security specialists.

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This model is also described as layered security commonly compared to an onion.

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I'd like to explain to you why this model has replaced one line defense strategies.

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Such strategies assume that one security mechanism is enough.

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It's been a common opinion that computers behind the firewall are safe because all unsafe computers

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are outside.

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We will use a few realistic scenarios that although based on simplified and optimistic assumptions will

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help us examine the effectiveness of the defense in-depth strategy.

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We will analyze this model against the ten immutable laws of computer system security these laws were

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created more than a decade ago by Scott Cole an I.T. security specialist at Microsoft.

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We will determine if these 10 laws are still valid.

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If the general rules and guidelines created by Scott Koepp are still applicable Let's start the seminar.