There are many types of security models are used to capture the policies for confidentiality and integrity. Security models such as Bell-LaPadula, Biba, Clark Wilson and Chinese Wall are very prominent place in high assurance security evaluations. Conduct a research and explain the Bell-LaPadula and Clark Wilson security models in terms of its scope, limitations and explain how the model works. 1000 words Conduct a research and draft a security policy for protecting examination results kept on a computer system. Your policy should at least consider the access requirements of students, lecturers and administrators. 300 words No plagiarism.