Tuesday, November 22, 2011

Policy exceptions

Michelle Kinger has a very good post at infosec island talking about the harm from exceptions to security policies. I also mentioned that in my unrealistic expectations posts.

There are many discussions about security and risk metrics, but it’s rare to see anyone mentioning something to control the number of exceptions granted; a key indicator to any security program should be related to the exceptions granted/revoked ratio and to the exceptions stock. If you have an always upwards trend in your chart, it’s time to review the policy or the incentives for people to follow the policy. Having a policy with good controls that no one adheres to is just the same as having no controls, with the down side of giving the wrong perception about your security state.  

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