Cyber security Flashcards
What is cyber security?
-Preventing hackers from gaining unauthorised access to computers and protecting devices from malware.
What is penetration testing?
-The process of attempting to gain access to a computer’s resources without knowledge of usernames and passwords, etc.
- White box = internal attempts with knowledge of system
- Black box = external attempt to hack with no knowledge of system.
What is a virus?
-Malware that infects a computer, and then replicates itself to be passed onto another computer.
What is trojan?
-It appears to be a harmless piece of software that contains malicious code inside. When uploaded the malware infects the computer,
What is shouldering? How do we prevent it?
- Looking for information physically
- Cover your hand when typing pin and be aware of your surroundings
How does biometrics prevent threats?
makes use of your physical characteristics which are unique to you.
How does CAPTCHA prevent threats?
challenges humans to provide they are human and not a robot
What is removable media and why is it bad?
- Storage devices that can be removed from a computer.
- Eg: USBs, DVDs
- If removable data contains malware it will attempt to move onto a computer and any other device when inserted.
- This can lead to viruses reaching several devices on a network.
What is pharming? How do we prevent it?
- Users are directed to fake websites and are asked to enter personal details
- Check URL if it has a green padlock if it does it is a verified website
What is shouldering? How do we prevent it?
- Looking for information physically
- Cover your hand when typing pin and be aware of your surroundings
What is malicious code and why is it bad?
- Software written to harm or cause issues with a computer.
- AKA Malware
- Used to steal data
- Examples: Viruses, Trojan, Spyware
How does biometrics prevent threats?
-Makes use of your physical characteristics which are unique to you.
How does CAPTCHA prevent threats?
-Challenges humans to provide they are human and not a robot.
How does software updates prevent threats?
-It helps fix patches in the program so there are no weaknesses for anyone to invade into the system.
Name all the prevention techniques
- Passwords
- CAPTCHA
- Email confirmation
- Biometrics
- Software updates