Across
- 4. s a method of changing the original numbers and characters so that they are hidden or disguised. This is important if you are sending sensitive information.
- 6. an expert at programming and solving problems with a computer
- 8. It helps you prevent viruses
- 9. is a law that determines whether people are allowed to access computers and modify the data on the computer system.
Down
- 1. are used to check packets of data as they are received by a computer system from a network or the internet
- 2. small malicious program that can alter and delete files
- 3. An internet worm is a program that spreads across the internet by replicating itself on computers via their network connections.
- 5. This type of malicious software pretends to be a useful program while secretly performing another function
- 7. Any software that covertly gathers user information through the user's Internet connection without his or her knowledge, usually for advertising purposes.