Software designed to cause harm to a computer system
Which statement describes how a computer virus usually spreads to other computers?
It attaches to other programs that are then shared with other users
A program copies itself and spreads quickly across a network, slowing it down but causing no damage to files. Which type of malware is this?
A worm
Why does a Trojan often manage to get installed on a computer?
The user is tricked into running it because it seems useful
Ransomware has encrypted a user's files. Which action gives the best chance of getting the files back without paying?
Restore the files from a backup made before the attack
A keylogger has been secretly installed on a computer. What does it capture?
Every key that the user presses, including any passwords
A company's computers have anti-malware software, but it has not been updated for two years. Why is this a risk?
It will not recognise malware that has been written recently
What happens when anti-malware software finds a file that is infected?
The file is moved to a quarantine area where its code cannot run
Which term describes malware that replicates its code inside other programs, spreads to other computers and harms a computer by deleting, corrupting or modifying files?
Virus
What is meant by ransomware?
Malware that locks or encrypts data until a ransom is paid
What is meant by a Trojan?
A program that looks useful but contains harmful code
Which term describes a small device that connects to a computer and secretly records everything the user types so it can be sent to a hacker?
Keylogger
What is meant by anti-malware?
Software that detects malware and stops it from damaging a computer
Why does installing the latest updates for an operating system help to protect a computer from malware?
It fixes known weaknesses that hackers could exploit
Which statement describes a difference between a virus and a worm?
A virus attaches to other programs, but a worm can spread by itself
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