Across
- 2. unwanted emails
- 4. the style of design which helps prevent strains from using a computer alot
- 7. someone who breaks into a computer system
- 8. computer security which blocks unorthorised access
Down
- 1. short distance method of exchanging data, common with mobile phones
- 3. A way of trying to obtain personal information for financial gain
- 5. a group of computers exchanging data
- 6. Can be downloaded and may damage programs and data