| A | B |
| Trojan horse | a program that looks okay, but allows hackers into your computer |
| virus | a small program which causes damage to your computer |
| firewall | hardware and software which filters bad things from your network |
| download | transferring something from the internet to your computer |
| attachment | a file which comes with an e-mail message and sometimes has a virus |
| password | should be changed regularly |
| hacking | breaking and entering into a computer network |
| sniffing | testing a computer network to see which "doors" are open |
| spoofing | using a false identity on a network |
| cookies | small files which store your internet preferences |
| readme.exe | an example of an attachment |
| privacy | protect this by NOT giving out personal info |