Across
- 2. someone who uses computers to gain unauthorized access to data.
- 5. a software that immediately displays ads when the user is online.
- 7. a secret word or phrase that must be used to gain admission to a place.
- 9. not having permission.
Down
- 1. a security system that makes it harder for hackers to access your computer.
- 3. a software that blocks access to a computer until a sum of money is payed.
- 4. a software that can track every keystroke made by the user.
- 6. a software that is harmful to computers and that can replicate themselves.
- 8. something that is not meant to be seen by others
- 10. a computer software that pretends to be a legitimate software.