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USENIX Technical Program - Abstract - 13th Systems Administration Conference - LISA '99

Adverse Termination Procedures -or- "How To Fire A System Administrator

Matthew F. Ringel and Thomas A. Limoncelli, Lucent Technologies/Bell Labs


When an employee is terminated, his or her access to the organization's network and computer systems must be removed. However, the most difficult employee to terminate is often the person that built the system. We propose a three tier model for coordinating access removal that is useful in normal and adverse termination scenarios. We then work through a number of case studies to see how the model performs in this difficult situation. We feel this model performs extremely well. We also discuss, informally, how to minimize the risk of backdoors and how employees can reduce the possibility of being blamed for security incidents if they are terminated.
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