Across
- 1. A person who breaks into computer systems.
- 4. Spy software that secretly collects information.
- 6. Allows data to be encrypted to make it unreadable.
- 9. Program that protects the computer from viruses.
Down
- 2. Program that records all keyboard keystrokes.
- 3. Fix that repairs a software flaw or bug.
- 4. Period during which a user remains connected.
- 5. Technique that consists of falsifying a digital identity.
- 7. Attack that overloads a service to block it.
- 8. Used to create a secure private network on the Internet.