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Across 3. The property of withstanding failure 5. the property that two communicating agents or related resources cannot be correlated 7. Enabling access to data or resources 8. A weakness 9. What prevents 'bad' things from happening? a method for implementing a policy 10. the property that two actions from the same agent or over the same resource cannot be correlated 11. the property that actions of an agent (or over a resource) are wholly unknown; the strongest form of anonymity 13. You can't escape your past 17. acceptance of false data 19. interruption of correct operation 20. a means to prevent a vulnerability from being exploited 21. a delibrate attempt to exploit a vulnerability 22. keeping data or resources intact 23. the property of an agent or resource remaining nameless or attribute-less; about which nothing is known

Down 1. What vulnerabilities should the system designer defend against? 2. Keeping resources or data hidden 4. Property of being genuine 6. part of the module title 12. Who are you defending against? 14. unauthorised access to information 15. unauthorised control of a part or whole of the system 16. part of the module title 18. What's 'bad' and what's 'good'; a statement of what is and what isn't allowed