Basic computer knowledge

12345678910111213
Across
  1. 2. Where are the emails stored?
  2. 3. A central system that provides information about whether users are online and passed instant messages between them
  3. 4. Most common method of protection is hard ________
  4. 8. Type of virus which spy your activity
  5. 9. The computer file which is sent along with an email
  6. 11. Opposite of encryption
  7. 12. What protects your computer networks from outside attacks?
  8. 13. A friend list or contact list
Down
  1. 1. Calling at a fixed price
  2. 3. Abbreviation for internet provider
  3. 5. Type of virus which shows us advertisement
  4. 6. Junk mail by other words?
  5. 7. Guy who wants to steal and potentially sell your personal data
  6. 8. Small article which says us contect of the email
  7. 10. Program for access to your mailbox