Security

1. Network security that monitors and controls incoming and outgoing networks
3. Accessing transmission media and using a device to intercept signals
5. Alters a computer without the user's permission. Self-replicating and self-executing
8. Basic unit of execution within an operating system
11. Denial-of-service, wiretapping, viruses, worms
12. Verification of authorisation from user accessing the system
14. Forces victim computer to perform a task repeatedly. preventing it from doing other tasks

2. Protects systems from malicious software attacks
3. Replicates itself to spread to other computers
4. Located between computer and network, to intercept and verify all requests from the network.
6. OS
7. Requires users to enter letters of a distorted image
9. Realistic authentication as a form of identification
10. Adding extra random bits to encrypted passwords
13. A virus with appearance of something useful