computer vocabulary

2. a person who illegally gains access to and sometimes tampers with information in a computer system.
3. an extra copy of data from a computer
5. a group or system of interconnected people or things.
7. a person who uses or operates something, especially a computer or other machine.
10. make (something) more modern.
13. facts and statistics collected together for reference or analysis.
15. all calls will be digitally ___________ to make eavesdropping impossible

1. an enthusiast or expert especially in a technological field or activity computer.
4. software) designed to detect and destroy computer viruses.
6. a preselected option adopted by a computer program or other mechanism when no alternative is specified by the user or programmer.
8. irrelevant or inappropriate messages sent on the internet to a large number of recipients.
9. a thing made or adapted for a particular purpose, especially a piece of mechanical or electronic equipment.
11. a gap in a wall, barrier, or defense, especially one made by an attacking army.
12. something that is intended to look like and be mistaken for something else, esp. a copy made in order to deceive.
14. I've just installed the ________ on my phone.