Across
- 3. move to the other computer.
- 6. virus can make copies of itself
- 8. a program that
- 9. a large number of
- 10. example by email,
- 11. an uncontrolled way
- 12. a computer that
Down
- 1. a connection
- 2. another computer,
- 4. a virus
- 5. many people’s mobile phones
- 7. messages