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Across 4. Malicious software that makes data or systems unusable until the victim makes a payment. 6. Records every keystroke made by a computer user 7. Includes viruses, trojans, worms. 9. A type of malware disguised as legitimate software. 10. A malicious attack to overwhelm an online service and render it unusable. (3 Words) 11. Software that automatically displays or downloads advertising material. 13. Prevents unauthorised access to or from a network. 14. What program should you regularly run to prevent malware infection? 15. Untargeted mass emails asking for sensitive information.

Down 1. This piece of software enters your device and watches everything you do. 2. Protects information by making it unreadable by everyone except those with the key to decode it. 3. Manipulating people into carrying out specific actions. (2 Words) 5. Often added to emails, can be used to infect your computer with Malware. 8. What sort of software can lead to potential malware distribution? 12. Malicious program written to alter the way a computer operates and is designed to spread from one computer to another.