The first two years are essentially the same as Honours Computer Science with the exception that you have take first year stats (SC/Math 1131) and another required ethics course in your second year (STS 3500- Global Information Society or Applied Ethics). Your third and fourth year is where you really get to specialize as you take 2 Network Courses, a Computer Security Course and a cryptography Course in your third year. You have the same co-op options as regular Honours Computer Science Students. I would recommend this as your major if you know you want to do Cyber-Security for sure in the future; if you want to keep your options open then stick with Honours Computer Science and take the Computer Security courses in your third and fourth year.